I can say that I enjoy sex with my wife. I can't say either of us has tons of experience to compare with others (I'm glad we're each other's first partners - we met when we were both over 30), nor would I want to. I just can't see how that is relevant for our relationship.
We both wanted a long-term relationship when we met, so people who are looking for something else may do different things. But she told me about her history before we even started dating - something I think is wise; if a guy is that shallow, do you really want to marry him? I suspect it's a good way of weeding out the ugly [in personality, not body] men. So I really had no idea what to expect in bed the first time we did things, nor did she. We were honest with each other, talked frankly about what was fun for each of us, and were willing to find out what we liked and didn't with each other - without putting pressure on each other. And if we need to do anything different, that's fine too - I would think that's true with everyone, not just post-operative people - not everyone is going to enjoy every activity, nor is everyone going to be pleasured the most through the same technique.
My biggest concern - and hers - was whether or not things would be painful. So we took it easy at first. I would never have wanted to hurt her (I can think of no bigger turn-off), and didn't want her to think that the only way I could be happy was typical penetration if that wasn't equally enjoyable for her. If typical penetration didn't work out, I'm sure we would have found other ways of enjoying each other, because, when you love someone, you care about their enjoyment as much as you care about your own.
I can say that I very much enjoy going to bed with my wife, and to answer the initial question: it's great for this guy! The biggest reason I enjoy it is not anything physical (although I'd be lying if I said I didn't enjoy the physical!) - but rather because this is a woman I have a deep connection with, who I love, and who loves me. She makes me feel attractive, and I hope she knows I think she's hot.
I'd also say that guys can enjoy the foreplay too. The longer we stay aroused before the "big event", the bigger that event is.