On long trip, moving to Seattle, we heard clunking in the back of the car when going up and down hills while driving through the Grand Canyon. We decided we'd hit up a mechanic in Vegas. We had a very tight schedule, and only had one day/night to spend in Vegas. We found this place through Yelp, and decided we would give it a try. The mechanics at Howie's inspected the car within an hour and a half of our arrival, found what was causing the clunking noise and let us know that it didn't need to be fixed at that very moment. They let us know that we would safely get to Seattle. They didn't even charge us for the inspection.
This place is honest, friendly, quick, and I highly recommend taking it here especially if you are an out of towner. I wish they were located in Seattle, because they'd be my go to mechanic.