LQS is 'local quilt shop'. I don't believe most carry the Alto's quilt cut. Friend of mine has it and loves it. If I wasn't so cheap, I'd have one myself. They really are very nice. Don't know that you really need to worry about a warranty. About the only thing that I think would ever go bad on them is the mat, which I don't believe they warrant anyhow - but they are replaceable. I would not hesitate to buy used as long as the seller assured me there were no broken parts, etc. and the price was right.
Good luck and welcome from NJ.