Oh, I have the Janome 1600p and I absolutely love it. One thing about Janomes...they are quiet. You get going at 1600 spm and you need a quiet machine. It has a thread cutter which is a plus for quilting. I have mine on a Pinnacle quilting frame and use a Stitch Regulator with it. I also have the Janome 10000 since 2003 and that thing just keeps humming along.
They must be a best kept secret because I had never even heard of a Janome before I went in to buy a new machine and one test drive had me hooked. If you test drove it and loved it...get it...you won't regret it at all! Not only that, you will have a shop you can take it to if you do have problems or want it cleaned and they will also show you how to use it. Great warranty on them too.
I have two friends that also bought Janomes after using mine.
Good Luck!