I have the Tiara II. . .love it for twin size and smaller . . .still have a longarmer for larger quilts and show quilts.
I have the two table extensions, the overlay as well as the largest supreme slider available. Still hard work to move the quilt, but with frequent breaks, it's doable.
If you're considering the stitch regulator, try it out first. Personally, it was the most wasteful thousand bucks I ever spent.