I chose them because of all the good reviews but in my case I'm very disappointed.
We enlisted them in late Dec to come remove the charge from our central air (as we're moving it to the other side of the house in the spring) as a precursor to finishing the move in the spring.
They showed up as planned on Dec 31st but the technician forgot to bring his A/C tools. He said he'd be back in the next week or so to do the work.
It's now about 5 weeks later and I haven't heard anything from them at all since despite leaving 2 messages with Hans asking for an update (the most recent one was last week). I'm giving up on them unfortunately as this doesn't seem like their normal behaviour.