I have a Tin Lizzie 18LS and love it. I bought it at a quilt show a couple years ago so I don't have a local dealer but I can call the company and get awesome customer service. As the others on here mentioned, it takes time to learn but I've never regreted my decision.
Just be careful...once your quilting friend find out you have a long arm you get asked to finish a lot of quilts for them. If you're like me and work full time and love to also create and piece my own quilts, I tell them the turn around time will be at least a year or two....or maybe when I retire in 3-4 years! Ha Ha....that usually scares them away!
Whatever machine you decide to get, just relax and have fun with it. and practice, practice, practice!