My first week was pretty painful (after Menard operation in Canada).  I received some heavy duty drugs for pain but found that they made me nauseous.  I tried cutting my dose in half so I'd feel part pain and part nausea (rather than 100% pain or 100% nausea).  After about a week and a half, I was riding in cars and walking.  I noticed, when I first rode in cars, that the bumps were, uh, bumpy (so I asked my brother to slow down, lol).  I could walk fine (albeit slowly) a day or so after the operation.  It seemed odd to me that some of the smokers (I'm a non-smoker) were moving around better than me (and I went for long 3 mile daily walks before the operation).
I felt little electrical charges (like a small zap of electricity in my torso) every few hours in the week or two after the operation.  I was told that this was my nerves re-connecting.  With Meltzer, I understand that with his process there are less nerves disturbed so there's probably less or none of that.  It wasn't a debilitating electrical zap...just something out of my norm, lol.
I've often wondered how many post ops have orgasms.  For one year, I had none and presumed that I was dead as far as that was concerned.  A year after the operation, after an, er, exciting dream, I suddenly awoke and realized that I could have an orgasm.  To quote Gomer Pyle (an old television show), "Surprise, surprise, surprise!"
Good luck with it.  I've heard nothing but great things about Meltzer.  
Teri Anne