I recommend avoiding them like the plague. Let me tell you our horror story.
We bought our used Honda Pilot from Greeley Honda years ago, since we knew of Markley's reputation. Recently we got a factory recall notice for the passenger airbag, so we decided to take it to Markley. What harm could come of it? Simple recall. Free. Right? Wrong.
In the week after their work, our battery died. It had had no trouble starting, no lights or radio or anything was left on to drain the battery, but it was a few years old, so I did not make a connection. Called AAA, got a new battery, moved on.
On Friday, coming home from shopping, the horn starts blaring on its own, headlights start flashing, and won't stop. We pull out the horn and headlight fuses, drive home nervously. Saturday, I cancel an appointment in Denver, bring the car in to the service people to ask them to look at it and figure out what they did wrong. The "service" manager denies their work has anything to do with these issues, which are totally coincidental, tells me they can do a diagnostic inspection but will charge me for it if their work had nothing to do with it (which he already concluded was true without even looking at it) and they can squeeze me in Thursday if I want. I make the appointment and go home.
My wife and I open all the fuse boxes, find the one they obviously pulled but did not put back correctly, fix it, fix a couple of others, put back the horn and headlight fuses we pulled the night before, and everything works again. Other than needing to replace a relatively new front headlight, and the cost of a new battery, everything is fine now. They could have done the work we had to do in 15 minutes if they cared whatsoever about their customers.
Next time I need "free" service, I will go to Greeley, or Longmont, or Cheyenne, or Timbuktu, but I will never go back to Markley Motors. Maybe their sales people are ok, but their service department totally sucks.