I'm liking it fairly well - tho not loving it yet. I must admit I am loving the DVD-Ram capability. This wasn't on the radar for me till I had it and found what I could do with it.
Straight out of the box for both DVD writers, I think it burns as well as the BenQ 1650, and better than my Liteon 1633 at higher speeds (12x/16x) on SL. Doesn't seem to be picky about media, giving very good to good burns on Ritek R04/Staples CMC M01 - it is burning the Ritek at 16x better than the Litey did at either 12x or 16x. Not a single coaster or a questionable burn yet (given how variable Ritek is and the fact I have done ~50+ burns backing up data so far). What gives the 1650 the edge is Qsuite & Smartburn and the capability to do scans.
I don't miss the ability to burn at 12x on it (which I can force) as I am finding out it does as well if not better at 16x. And it is a quiet drive.
I haven't tried DL yet - haven't had a need and probably won't till prices drop a bit more or I start backing up movies.
It does a good job ripping CDs - it is sensitive to jitter (which seems to be a characteristic of BenQs) and I do have to rerip tracks, but it does a very good job indeed with scratched, heavily used CDs, reading some even the 1650/Litey didn't like.
For what I paid for the drive, it was well worth it. For the everyday user, it is one good drive, tho for a CDFreak I doubt if it would ever become a primary drive