Apologies, I saw your original post and replied to that, not realising that you had arrived here already. Luckily I avoided any infections - I was stuffed full of antibiotics before and after the implant operation - but yes I was bruised and battered for a while (not helped by having been driven home along the concrete section of the M54). There was only a slight twinge on activation because the AMS800 pump is very slippery and the surgeon had a little bit of difficulty finding the release trigger.
My AUS is still working well even after all this time, obviously not as well as my original natural sphincter, but it has helped a lot in getting life back to somewhere near normal.