No, you're not the only one playing this. I have been playing since .14 and am still not tired or bored with it. Other than adding new planets in this last update they also fixed up the visuals, added 2 new tutorials(orbiting, and getting to the mun), a few scenarios that i haven't really looked at.
When you say you can't land on the mun, are you able to get to munar orbit and are just having problems touching down?