NOT HAPPY AT ALL!!! I took the 3 classes for $15 and took one class that was supposed to be heated and they said the humidifier was broken so it was a semi heated room. Then they expired which is totally fine and I found a groupon. No where on Groupon does it say that I can't use it if I have taken classes at evolution. After the receptionist redeemed my groupon she then told me I couldn't use it after and wouldn't refund me my money. She then told me to contact groupon and I did, and was told that since it was redeemed I couldn't get my money back. Biggest waste of $80.