The projector is not bad for its price category, there are a few nuances for which I will give four stars, and minor damages, most likely resulting from delivery, I hope they will not affect the device's operation, but in principle, it will handle five stars. I've been using it for a while, I hope it will last a long time. because on the first day, strange artifacts appeared on the screen, most likely the lens is not of good quality. If possible, please tell me how to solve this problem. and I'm happy with the product.