Glyfair
Explorer
This might quell some fears for most (and engender some in others). In this thread David Noonan describes, in general terms, his experience with the rules in their current rough form.
One thing I can tell you, right now, tonight, is how the game is functioning at my Thursday night table. We're getting around the table faster than we did when this was a 3.5 game. We're hitting rules hitches at more or less the same rate as in 3.5--but this is playtesting, where the only alternative to finding problems is, well, not finding problems. I gotta believe those will fade away as we polish things up. And as the DM, the "information processing" load (bookkeeping, lookups, resource management) on me is way, way down. This does wonders for my ability to DM because I can focus more brainpower on making the encounter come to life.
My players--a mix of other game designers and friends from outside the game industry--are having a good time. (But the point is that we're friends, so the rules can't really take credit for that.) My players have some issues with the game still, and I'm madly taking playtest notes as we play.
So that's where we're at right now. If I were in your shoes, I'd sure want to know as much as possible, right away, proverbial elephants be damned. But May 2008 is a ways off. Just check in with us, volunteer to playtest, and eventually you'll see for yourself, long before the book is on the shelves.