DO NOT TAKE YOUR VEHICLE THERE!!! they have had my van for over 6 months!

Wish I read the bad reviews, DO NOT TAKE YOUR VEHICLE THERE!!! they have had my van for over 6 months!!! Was told it was one thing wrong so fixed it then another then another, 30k then 20k then 20k I'm in for over 60k now and it still doesn't work, they want 15k more and say its pistons now?!! Any decent mechanic would look at all the problems before starting a repair job on an engine and should've been told 15k for a new engine is what you need. Shady business ethics, beware. Thing is i know more than 10 people from work that take their vehicles there regularly so will def get them to stop!