I agree with Quilty Louise that Brother is a great machine for the money. I have baby lock and a Brother ... same manufacturer. While I can do 6 x 10, I find I usually prefer 5 x 7. IF YOU CAN AFFORD THE bigger hoop machine, go for it ... but you would get a lot of use from up to 5x7. You would outgrow a 4x4 machine pretty quickly.
I do not do Facebook..but if anyone belongs to a really good online group that is not Facebook, let me know. Thanks.