i have the uppers, its the vault system... they are ok, definitely better than canvas but not as good as the full poly doors with glass windows. that being said they are like 1/3 of the cost and you can remove them super easy so it is what it is. i would in fact buy them again if that helps, however there is a learning curve to installing them because if there is ever too much pressure on the glass and it gets cold enough the glass will crack but it is in fact safety glass so it wont hurt anyone. hope this helps, it was a great addition to our general at a decent price
