Michael Dexter has written up a review of PC-BSD 9.1.
He thinks PC-BSD is a great system with many window managers to choose from, has a good package manager and great jails management.
However, FreeBSD’s weak point is PC-BSD‘s: hardware support.
“It took time but PC-BSD is really shaping up nicely and teaches quite a few lessons about holistic OS design. I haven’t even explored its “Life Preserver” backup/FreeNAS option but the developers are clearly are focusing on adding the missing tools of the highest value. They are also focused on creating a complete client/server ecosystem and PC-BSD 9.1 users can look forward to expanded command line alternatives to the GUI tools. PC-BSD also has quite a few invisible features such as the unified base OS .txz it uses for jail creation that I may end up using for building BHyVe images. PC-BSD 9.0 and newer is truly worth a try and I applaud the progress its developers have made.”