Hi Roger.
I have had my BAHA for just over a year now and I love it. I found that the real thing is much clearer than the demo. It doesn't sound quite like "normal" hearing, but it's definitely clear enough that you can hear and understand someone speaking to you on that side.
I haven't had any trouble with mine (knock on wood!). I went to see my audiologist 6 months after I'd gotten the processor just for a routine check up and a fine tuning, but haven't had any problems. While I'm quite sure the insides of it are quite delicate, I can tell you that more than once I've dropped the thing on the tile floor in the bathroom and it's still fine (don't try this at home).
The surgery for the implant is not a big deal - especially after AN surgery - of course not much is a big deal after that. Wendysig just had her surgery, so if you check out her recent posts, you can see pictures of the bandage and hear about her experience. It's done same day, either local or general anesthesia (usually your choice). I was home in time for dinner and was at my daughter's soccer game the next day.
I've had one infection of the site and that was still pretty early on in the healing stage. It just required some oral antibiotics and some bacitracin and it was cleared up in a few days. Once it healed, I haven't had any problems with it - an occasional flare up, where the skin around it just feels irritated, but I have a steroid cream that I put on it at night and it's cleared up the next morning. That seems like one of those things that happens to some but not others because I know many others here (leapyrtwins to name one) have not had any issues at all. Guess I'm just a difficult patient!
I wouldn't imagine it's any "easier" to get an infection there than it is any other surgical site. You just have to keep it clean and follow whatever directions your doctor gives you (which seems to vary).
My opinion - yes it is worth getting. I've never tried a Transear because I can't stand having anything in my ear, but I know people have had great results with those too.
Hope this helps!
Lori