I have used it from day 1 and think that it is fantastic.
I remember the problems that sjeep had when he tried to release his rc1 beta version, somebody basicaly obtained a copy of his beta test version (only sent out to the official testers), edited the credits and distributed it over the net. Then some sites (not naming nameZ) hosted the leaked version and would not remove it.
Eventually sjeep was encouraged by his close friends over at GameBase to continue working on it, and shortly after a new improved rc2 version was released.
PGEN is a quite simply superb.
If you like it, swing by
http://www.gamebase.ca/forums/index.php?board=4 and let sjeep know.
You can get PGEN from
here, you can also get PSMS (Sega Master System on PS2) from
here