Never again! They have no clue what they are doing, they are just guessing and watching the same YouTube video tutorials. I gave these people two projectors to fix and gave them the parts. They damaged the parts! I went to look for new ones. Gave them the new parts (two sensors). They replaced them but now they removed all the dust inside the projectors and gave me the projectors projecting dirt. When I power up the projector I see balls of dust now on the wall. They told me "It came like that". And is not true since we powered up the projectors when I originally left them at the store and they were clean. I have 16 of those projectors and any have that problem. So on top of the $630 they charged me, now they wanted to charge me an extra $250 to clean up what they messed up. They came up with an extra bill of $250 I DID NOT PAY! I took my projector and left. This old man is already on his way out, the one working is his Peruvian guy in the back who is lazy, lacks education, has no certifications, and literally just guesses what he is doing. I took my projector still with dirt. These people are lazy, do amateur work and they want to charge you more for something badly done.