I would know as I worked there for years. They hire inexperienced people off the street and put them in service trucks. They constantly misdiagnose problems and then make up excuses. I was constantly battling management over over charging, rewriting my service tickets, billing for parts I didn't use. If they are good at onr thing, it is lying and covering their a**. I highly recommend the product but as soon as the warranty is up, find someone else to do your service.