I have one of these (DW1620Pro) along with an NEC3520, and previously had a NEC 3500.
I prefer the BenQ to all of the DVD Burning capable drives I have used. Very accurate with a no/low coaster creation rate. Quieter than my NEC, and just as fast. Maybe the pioneer is better, but I have burned on Cheap DVD+R, DVD-R media with no issues. I have not used any rewriteable media because if I burn something I wouldn't reburn it often and DVD media is becoming cheap. I believe most of the reviews for DVD Drives can be taken with a grain of salt (as can this one). For under 50 bucks, this is a fabolous deal on the benQ drive.