Gave 1 star because had to give something. First--they sent my machine to the wrong address-TWICE. I only got it because employee at location looked me up on facebook and contacted me! THEN they sent me the CHEAPEST, most ineffective mask I've ever seen, and I've seen MANY. It's 1:36AM and I can't sleep. The mask keeps falling off. I looked forward to getting and using this CPAP machine and I can't. I'm tired and frustrated and lincare is the WORST.