I really can't decide if I want to buy this game. I loved BG 1/2, Planescape Torment and those type of games. I've read a lot of positives about this game, but I've also read about the story being boring and tedious and the inventory and crafting being terrible. I wish there was a demo or something.
I can't talk much about the story, seeing as I'm less then the halfway point of the game, but so far I've found it interesting. It does require you to read what people are saying, and pay attention to what they do. (for example, I finished a quest just last night where the person ended our conversation with "I'll go see him right now!" and if you follow the person to where they are going there is another conversation that happens if you are there or not that give you closure on the quest.)
The inventory is not bad, it just could have been better. The inventory is set up to be filtered and auto-sorted, this makes the default 'unfiltered' view hard to deal with, but with smart use of filters and sorts it is just fine. The only problems I have with the inventory system is that bags are mostly useless (things in them can't be used, sold, or crafted with) and that you can't sort your inventory in the sell menu.
Crafting could have used some more work. It has a fairly limited number of recipes available, and the method of 'drop item X on item Y and if you can craft it will happen' just does not feel satisfying. I think they would have been better off creating a Horadric cube (from Diablo 2) like interface for crafting. For example you click on the anvil and an anvil shaped box opens up, you put the stuff in the box and hit a SMITH button, it gives you a hammering sound, and then if successful you get some audio feedback ("Eureka!" for a new recipe or "Another fine Creation!" for a known recipe) and the crafted item, if failed create a lump of metal and a 'Dammit! I screwed that up!'
Really these are small gripes not major issues, and ones that can probably be solved by the community.
I've got some time coming off work, maybe I'll work on making a mod for these.