Preamps are of a midas design, effects are excellent, same with eq, has a ton more features but still real easy to use and Behringer are really on the game with both the build quality and aftercare.
When you consider a studiolive 24.4.2 is more expensive for a lot less features then any case for the buying the presonus has gone.
Also at the moment the x32 seems to have the best ipad and pc/Linux/mac apps and has people developing other software for it (i.e. a patch list creator).
Just head to soundforums.net to see the x32 Megathread (over 250 pages and 500,000 views) and you'll see what I mean.
(just waiting for the x32 producer to be released then I shall be on the x32 bandwagon!)