[stillodium]

Hmm...well...i'd have to say there are three things that really kill it for me, i'm not going to get into the whole level scaling thing, i do not believe that weak monsters make a great experience, i do however think that individual npc's let's more or less randomly say 30 should be preset as a rule, and i mean very powerfull ones guarding some special, preset artifacts, items, etc.
They are by far the most efficient way of making you actually feel like you've grown in power and they give you something to look forward to. All the excessive scaling and randomness spells monothony for me, i've reached a point when if i see a dungeon i turn the other way, same old ingredients and random (weaker) armor parts. That's 2, the third is the "park" feel, like someone mentioned earlier, it's like an instant battle option, you just go out the gate make 5 steps in any direction and you have arived...or allready passed it.

Everything else just derives from this, i'll just settle for one example, the sneaking, roguish night incursion thingie... what's the point, if by some bug the fifth legion hears your plate boots strolling on theyr marble floor and spot you well... no biggie cause you'r simply gonna have to kill them all. And that is a real shame, nothing compares to the thrill of a low level thief silently making his way through a fortress with preset guardians hoping, just hoping that somewhere in the next 10 reloads he might actually make it in the same room with the artefact/item of his greedy dreams. (Just so it's clear and i don't get peculiar replies, you don't have to, but you could choose to:P)

EDIT
Damn...stopping mid reply to eat is evil:P...Niteowl and Pillage allready tackled the matter...partially.