Congrats! You are going to have a blast. We certainly have since we purchased our Class C last December. I have learned much and also much of it from this board filled with very helpful and informative folks.
The important things to make sure are in top shape include tires and possible water intrusion issues. I see you are in AL so unlike here in Los Angeles, you won't have problems getting some rain to check it all out. After a hard rain or two, check for leaks. As was stated, water damage is a killer. Also, make sure your tires are in good shape. They shouldn't be older than 4-5 years and hopefully they don't have cracks, checking etc...
The rest will eventually break as minor things always do on Class C's and then you will come on here and ask how to fix it. For example, since getting mine, I have had to address both the generator (needed a new 30 amp circuit) and the thermostat (the board). Both were minor issues and were thanks to being rattled lose over the course of the years. Easy fixes and cheap. That stuff will happen. No big deal.
Okay, now go have some fun and figure out what works and what needs to be fixed and come back and see us! ;)