Darkspark I'm working my way through the thieves guild stuff now, and though it isnt exactly 'challenging' it is still quit a lot of fun and i enjoy it.
On the note of them removing a lot of the agility, strength, etc. The game still plays quite similiar to if they were still in there. Its just got rid of a bit of redundancies. I can understand why you'd miss it if you wanted to hardcore role-play but imo its a change for the better. And they more than make up for it with the new way perks work :D
Oh and i met a character named Torsten today!