I have one now and I have been collecting my thoughts in no particular order.
Apples support is mundane for business-glass support but no home user gets that support. It was smart getting the stores and a tech counter out there.
I totally agree, a 17" machine isn't a laptop. It is a desk system that happens to be moveable on occasion, not special to mac they are all bricks like that.
I now have a 15" MBP of my own and getting it through amazon warehouse deals I was able to bring the price disparity down to only a couple hundred of similar spec pc models. Basically I wanted to see what they were talking about and try something new with osx. I got the 15" because I wanted a discrete graphics card so I can game on it, idea being I can get rid of my tower PC and only have laptops from now on.
Comparing to my tower which is a quad xeon w3530 (similar to 2.8ghz i7), 6gb triple channel memory, a HD6950 video and intel G2 SSD plus a 1tb seagate. The mac is a quad 2.2ghz i7, 8gb of dual channel memory, an either or switchable amd HD6750M / intel HD3000 and intel G2 SSD and a 500gb toshiba. I would prefer a little more in the graphics but it plays the games I wanted fine though it does run the fans high while doing it.
First thing that really annoyed me is that there is flat out no zip program available that will create multi segment zip files for any price. I searched for days. Forums were telling me about split/cat etc like I want to deal with that. We are pretty blessed with 7zip and winrar in the PC world. Closest thing was stuffit that will create mulit segment files but in the small print they mention they are proprietary stix format, I was pretty annoyed but I can't return software.
I rather like the simplicity of mail but I haven't looked under the covers to see how easy it is to service. Sort of a non issue as all of my private email is imap internet based. Seems to be one of those like it or hate it programs.
I have heard horror about the osx file system being self corrupting seems really old, super primitive even compared to ntfs. Siracusa has some comments on it that are most disturbing in his lion review.
For bootcamp the drivers apple supplies for windows suck. They force the use of the discrete graphics card at all times so battery performance is about half of what you can expect from osx or any equivalent PC. They work fine without trouble though.
vmware fusion works well, I have seven versions of windows in it. I like how it can pull in and virtualize the bootcamp partition. But again requires the discrete graphics card be enabled at all times while using vmware. Machines in this move over to vmware player without problem.
Having the internet restore be built into the bios is neat. Stick in a blank hdd and you can partition it and reinstall the OS with just a network connection. I did it when I put in my SSD to check it out, worked well.
As far as the hardware goes I like the case, it is solid and doesn't creak or feel cheap. Still possible to bend and scratch obviously. I took out the optical disk and moved the spinning disk there with a drive adapter. This is apparently the last of the line you will be able to do that with, next MBP are rumored to be without optical disks which frankly is a good decision as they will be much smaller.
Desperately needs USB3. Lightpeak/thunderhole is nice and all but they don't make memory sticks for that, not that you could use them anywhere else anyway.
I positively hate the keyboard. The flat top keys don't give you feedback if you are centered on the key until you run off the edge of them. Most keys have a little cup or dish to them to help you center your fingers and these don't at all. I don't like the frame between the keys either. I dreadfully miss the home, end and delete keys. Mushey key feel is crappy too, I mistype on them all the time and don't have any confidence I could look away and type a paragraph like I can on my unicomp.
I actually like the touchpad and really like the gesture support. The clicking would annoy me if I didn't configure it for all touch but I do have it configured for all tap to click so I never have to click the thing, similar to how I like to setup PC touchpads.
Mission control with the associated gestures is pretty nice but the thing wrong with it is if you close an app and then reopen it the app will show up in a seemingly random position so for the four finger swipe left or right it won't be in the same place. Annoying and inconsistent. Also annoying is if an app isn't developed with the full screen viewing mode than it won't be compatible with mission control and will always be stuck on the desktop screen, many developers aren't on board with this.
Resume from sleep is damn fast, ready before you get the lid open or if it was already open before you can get your hands positioned on the keys to type the password.
App store model for distributing built in software is dumb and doesn't work. The ilife suite (iPhoto, iMovie and garage band) are installed on new computers and are assigned to the first apple ID that signs into the computer. So if you are buying used or had someone set the computer up for you, you now have a lot of calls to apple support to make and a day or three to resolve it. Seems their support isn't configured to resolve this yet, you get bounced around quite a bit. I'm not sure if they would fix it for you out of warranty, the resolution was closely tied to the serial number of the machine.
Preview app is pretty nice for opening about anything and I found you can fill out PDF forms in it even though it is a little clunky. You can also print to PDF in any app it seems. Out of the box PDF support is rather nice.
The training wheels for the whole osx experience are definitely on and as a new user I appreciated it. As reviewers have mentioned you can't tweak much and something like removing windows animations for a faster experience can't be done it seems.
All in all I haven't really found a killer app in osx that matters to me. At the moment I find it unlikely that I will stay with a mac when I upgrade in the next year or two. That has a lot to do with my job and what I have to do to stay current, it that were to change I would possibly stay with a mac but I don't see changing career paths that drastically.