Aiming an such, is not a big issue, works well with a controller. However, there are a lot of controls with dials and various buttons that does taken some getting used to. I haven't gotten very far yet, real life got in the way, plus it does have some kind of nasty bug where you can miss part of the story quests so I am waiting for the first patch to drop. But with all that said, gorgeous game and very much worth it in my opinion, but I do know others don't feel the same way.
As for PC release, I suspect it will come some day but no official announcement yet, likely will wait until after the holidays until everyone has already bought a console version and then they can get PC gamers to buy it twice:) I think for GTA it came out a year or so after the console.