Hey Josh, I got my ACL repaired using the patella graft. I did the pre-hab and rehab religiously and haven't really had any limitations or problems with the knee. It gets a bit achy from time to time because of running, but it's not too bad really. I did a heap of flexibility work in the 9 months after the surgery - but most of the issue was straightening and getting a small hyper-extension back in the knee. I had the surgery in August 2004, ran a half marathon in October that year and it's been fine with jiu-jitsu (in the last 18 months or so - so not exactly high level stuff). I think following doctors orders was crucial.
Hope this helps.