I don't remember any point in time where I didn't feel like the new one was part of me, it's felt very natural since day one... other than all of the soft tissue stuff. At 7 weeks I was back to work full time feeling good, but it wasn't until around the 7 or 8 month mark where I've started to notice what I would call an absence of sensation where I no longer notice any little pains or differences between the hips.
Right from the very beginning it felt better, and just keeps getting better as I'm able to make more use of it all the time now.