Considering I sunk many hours into Neverwinter Nights and it's expansions Shadows of Undrentide, Hordes of the Underdark, not to mention the community content. I find that this game happily scratches that nostalgia itch.
Since it is new enough that there really isn't any full guides available yet I find there's more a sense of adventure in playing (of course if you're able to ignore looking things up, this point won't apply)
I'm currently in chapter 3 and so far (knock on wood) haven't run into any real game breaking bugs that a simple reset won't fix. I am, however, following the old adventure principle of save often and with multiple hard saves.
My current system is built with stability in mind, I specifically hunted down a motherboard that you can turn the default overclocking of Intel CPU's off (Which for some reason most motherboard manufacturers seem to do). Considering how hard Unity and this game is on the CPU cores I wouldn't be surprised to find out that that is adding to many people's issues.
In short, yes I'm happy with my pre-order.