I had to get an oil change with OMS as i had a pre-purchased oil change card with oil changes remaining. Due to several incidents previously where I scheduled service appointments with OMS first thing in order to have cars back by end of day; only to have them disassemble the car and then find out they didn't have parts; I no longer use them for service. I was actually surprised that this oil change wasn't as long as they previously took (up to 1 1/2 hours )