Took my GMC Yukon here to get my transmission flushed and have the filter replaced. It only cost me $120 vs. the dealerships that wanted to charge me $400. Additionally, the Yukon was veering slightly to the left, so I asked them to look at that while they were working on it. They weren't able to do the alignment there because of the 20" rims, but they referred me to a place that did it for fairly cheap.
Downside: waiting room is tiny, and there's no wifi, which is annoying when you're waiting a couple hours.