Played the demo and it was a bit of a yawn-o-rama but I spose for £5 you can't go too wrong. Although it's not like you can take it back to the shop and get the time back that you spent on it. I feel like a prisoner being frog-marched along the short road into middle age.
I'm playing it unpatched so far - I havent had any problems with quests yet but it probably depends what alignment you play - I'm playing it as a goodie goodie Lawfull Good party so far.
It has a few bugs but the main gripe is how easy it is - my party are already 7th and I'm only starting on the 2nd level of the temple - I have yet to be seriously challenged by any encounter - I just wander into the temple and kill everyone - no strategy required
I liked it a lot but I managed to complete it, by accident, without actually exploring any of the temple or playing for very long at all. Which was a bit dissapointing to say the least.
If you're in a patching mood (and some of the bugs like the non-working quickslots or the infinite duration of 'silence' are pretty annoying) check out http://www.co8.org/style_dark/index.php?id=news for some fixes not covered by the patch from Atari/Troika.