Stand a better chance fixing it yourself.
First experience was with a coolant flush, by the time I drove a few blocks down the road I had coolant all over the engine block.
Decided to give them another chance took the vehicle in for a rear brake job. Got diagnoised for all new bearing in the rear end of vehicle total of 1600 dollors, denied rear end work. Had them complete brake job. While doing the brake job I watched the mechanic take a mallet to the drum to get the drum to slide over brake shoes. Took the vehicle down the road a few blocks to get second opinion on rear end. When I arrived at store I noticed smelling something burning at the rear end, assumed it was the rear end problem Lentz stated I had. Got the vehicle diagnoised at the second opinion store to have the mechanic show me the buring problem was my rear brakes that were just replaced by Lentz, wrong shoes installed, also diagnoised the rear end by draining the fluid which was clean and just replacing the seal that Lentz found. Rear end fine and a much cheaper fix. And as you can imagine Lentz still claims the brake shoes were correct, hard to imagine that they let a vehicle go with out a proper test drive.