I find the Pentium-D choice to be really not-good, but maybe that is simply because the project designs were set in stone before Core2Duo.
Secondly, I don't trust their statements about no heat issues; mainly because they didn't supply any test data supporting it, instead, they supply a chart showing assorted different 120mm fans with their CFM and loudness numbers. It really shouldn't have been difficult to load up the prioccessor and give some temp readings off something like speedfan. Since it would have been so easy to do and they didn't include the obvious testing: I just don't believe them when they say no heat issues.