When you really get to looking at embroidery machines & what you would like to have, it comes down to how MUCH money you want to spend.
I have a Janome 350E, and before that one I had a Singer XL100 (one of the first embroidery machines made). I'm very happy with my Janome 350E, and if you want to go to my etsy store you can see some of the items I make with it.
http://sewfunquilts.etsy.com
The Janome 350E is an embroidery only machine and does not do regular sewing. It has 5x7 and 4x6 size hooping area, and is very user friendly. It has a card slot and usb port, so I use usb Thumb drives in computer to get designs from my designer library files or the web, then put thumb drive in machine. I buy most of my designs from Embroidery Library and Oregon Patchworks and Advanced designs.
Go to the mfg. websites, and do some reading, looking and comparing of features of what you want to do with it.
Have fun is the main thing.