I went here on the advice of a friend to get a second opinion on my a/c problems. Excellent customer service. Jeff, the owner, gave me an honest evaluation of the problems and determined the a/c system did not need replacing as suggested by my usual repair shop. Instead, a simple replacement of clogged air filters and a re-charge of the compressor solved the problem. Greentree saved me over $1200. Instead of a $1466 repair bill, it was only $208. I'll be taking my repair business to them for now on. Also, they have the cleanest and most comfortable customer waiting area I've ever seen.