I know the BENQ 1620 (PRO) and it's philips brother/sister are nice drives.
+ Good quality burns and fast.
+ Support that seems to care (or at least they keep up the appearnce )
+ Good techniques - WOPC /support of more data in ADIP.
However some people want something different for some reason.
NEC is a bit better on -R still. However the latest firmware of Benq did improve quality but did sacrifice speed which I don't find a problem but some folks do. Let's see how the cards are reshuffled when the new firmwares are released.