I use linux on a daily basis, both in work and at home. I haven’t used beryl/compiz much due to the fact that all the PCs I use have AMD graphics cards, which up until recently have been fairly badly maintained for linux, to get compiz running at all you had to jump through hoops because of the driver’s lack of support for AIGLX. However, I believe that this or next month AMD are finally adding support for it, so I might try it out again :)