He likes that he's more accepted. There are automatic doors and handicapped changing booths and he's not viewed as an object of pity, or at least not by most people.

He's got a modern forearm crutch, which he got very quickly, but he hasn't upgraded his leg. Tony Stark is working on that for him, and Daniel's willing to be patient so he doesn't end up with some kind of weird Stark prototype. We all know how Stark inventions can, uh, have quirks.

If Stark wasn't here, I think he'd work more on getting a modern leg from traditional sources. He'd like to not need a crutch someday.