Best auto mechanics I've ever been to! Just moved to Boulder and bought a used truck so I took it to Haglins to have it checked out as well as a few things I noticed concerning the vehicle. I received a complete, detailed list of my truck, easily laid out with the good, bad and ugly. Very easy for someone like me with almost 0 knowledge of cars to read and understand. I personally dealt with John Oliver while I was there and I recommend to everyone to speak with John when you go, great guy with great knowledge on vehicles, specifically my F150 since he told me he's owned 5/6 himself. Stand up gentleman who really is there to help you get your vehicle going at 100%, listens to what you have to say and responds courteously and professionally. I know I need to go back within the next month/2 to get something else fixed we talked about and honestly I look forward to it to see the great team out at Haglins. Anyways, after we talked they changed the oil, air filter and (excuse my probably bad terminology) liquids/oils in the rear differential to help fix a bit of "hopping" "grindy" sensation I was getting when accelerating and turning at the same time. Now two days later that problem is gone and I can tell a big difference in how my truck is running. I will only take my vehicles to Haglins from now on, that amazing first impression I had goes a long way in my book.