I got mine from MWAVE, box came a little banged up, bit torn but it worked fine.
The panel burned out after a month though, they told me RMA process would probably take a little over a month including shipping time from start to finish.
Luckily I live in SOCAL, so their office was only 7 miles away. I drove it down to Westinghouse and turned it in to save shipping time expecting them to work on it and return it to me in 3 weeks. The guy says hang on, takes it inside 3 minutes later comes out says, "It's a bad panel here is a brand new one."
Me "Sweet".
All around a good experience.