I'm a chemist by education but since I'm a mechanically inclined one, I've learned that I am a bit of a unicorn. So I don't do typical chemist work, I install, fix, upgrade, and train people on the use of the one spectrometer that most chemists are scared to death of.
I love the fact that I'm never facing the exact same thing over and over again. I don't work in a cubical. The last time I actually saw one of my coworkers in the flesh was three months ago, and I'm doing a team job tomorrow with another that I haven't seen in nearly a year. I haven't seen my boss in a year and a half. It is also kind of fun to be the authority on things, so I kind of walk on water when I am in a lab. Even the most self absorbed and uppity "science diva" type professors tend to not be a pain for me. And the few that are, I can threaten to leave without fixing anything and they get reasonable really quickly.
So those aspects are great, the down side is I'm on the road 3-4 nights a week flying or driving all over the Midwestern USA. The travel was fun at first, but it's pretty annoying a few years in. But the pay is really good and the benefits are insanely good when it comes to trans stuff, so I'm going to be tied to this job for a couple more years at least.