Hi Erin, I have a PE-770 and the Eclipse hoops. I find them extremely useful because I do lots of 4x4 stuff (those charms I made, for example) and onesies. I also like having a second 5x7 so I can have the next shirt hooped and ready while one is on the machine. I hooped two at the same time the other day when I made the dragon shirts. I've only used the multi-positional (5x12) hoop once on a shirt for my husband. You probably know, you can't do a larger design, but you can add words or do two designs next to each other if you have software to split the design. I've never used that tiny circle hoop. Hope that helps! And congrats on the new machine! Pics?? Regards, C.