Our office is in a dusty atmosphere. One of our units wasn't draining properly, so we made a call. The same guy that put the units in, a few years ago, came out and fixed the simple problem.
He was very professional, knew exactly what to do, and made sure our second unit didn't have the same issue. I would highly recommend this company and the units!! I will add, we've had these units going on 3 years, and this is the first time we've had to call them out.