The tilt mechanism doesn't work great. I bought 5 umbrellas and 3 have this problem. Also, the design does not allow the wind to escape and the umbrellas easily get taken by the wind. The design would be better if it had tiered fabric flaps to allow wind to move through the umbrella. The light function is okay, but easily broken if the umbrella gets taken by the wind due to the solar mechanism being on top of the umbrella.