I took a chance on buying a laser off E Bay. I already had a smaller LG500 so I thought I could handle fixing it if I needed to. I bought one of the 130 watt HL lasers from Goldraydigital and everything went very smooth with the purchase. It was paid for it on July 13 and I received it on July 17 that included a weekend. I uncrated it and plugged it in and gave it a test file to cut. I had to adjust the mirrors just a little but it cut and engraved great. I had a problem with the chiller fans not running and I let them know they were very helpful and had me run some test and video them. The told me it was the first time both fans had failed but they shipped me 2 new ones. I installed them and everything is working fine. Would I use them again YES great customer service and very prompt..