I have faith in Plextor. Yes, this drive got off to a horrible start with the defective batch of TLA#0000's :Z, but I think the problems people are experiencing now are largely firmware related. One or two more firmware revisions and the drive will be what people demand from Plextor.
I think people get a little overly pessimistic about these kinds of things in forums, but I beleive it's going to work out just fine.
If you want the best drive for the money right now, buy a Benq. By Firmware revision 1.04 or 1.05, the Plextor will again be the Champ. Why do I say this? Because people forget too soon, that Plextor drives have ALWAYS been the best.