Obviously I don't know how long the tint will last. He gave me his word that it will not bubble and that there are really no complaints. I paid $104 including tax for five windows and the two triangle windows in the back. I got a 1 year warranty, but for $40 (I think) more I could have had a 5 year warranty on the same tiny. I hope that means he trusts that the tint will last at least that long. I got also got a good car wash inside and out with four additional washes for free within the next month. I know they say you get what you pay for, but so far it looks good, definitely 5 stars on the service and price and I guess I'll know about the quality at some point in the future.