Scott's is in my neighborhood so they are very convenient for me. I've been there for maintenance-type things such as state inspections, oil changes, tire work, etc. The staff is always super-friendly and the work is done quickly and accurately. The lobby and the waiting room are spotless, and you can have water or coffee, and watch tv while waiting.
My only complaint is that I use their coupons, and the restrictions are not listed clearly on the coupon. So you could end up paying more than advertised on the coupon. They should change this--every little bit helps.
That said, I'd still rate them a 5.