"HAA is a joke" Well, some of the HEMS companies are a joke.  

But, if you're at a good base, work for a good program, a good company and your local management is not a sociopathic meglomaniac, it's a good job. Not a lot of flying at most bases, but otherwise I was very happy.

In that list, the base is the most important.  Most of the people you will work with will be medical, if their  local management isn't adequate to control the job site relationships, it gets interesting really quick and that endures until staff is moved around.