One question I have for you is, what do you want to do with it? I have the Husqvarna/Viking Topaz 20 and I love it. It does exactly what I want it to do. I use mine to make quilt blocks, decorate towel (dish towels and bath towels), t-shirts, and even put a design on sweatshirts. I love making the free standing lace and have made a lot of bookmarks for my DD's students. If you want to embroider Disney items you will want to go with Brother. I have some Disney designs that I bought from Amazon but I cannot buy the ones from Brother and use them on my machine.
I like my hoop sizes and don't intend to do anything bigger than the 7 in. x 10 in. I would like to have what they call the continuous hoop for doing edges, but I have done it on my largest hoop, it just takes time and concentration when re-hooping.
My friend bought the Brother PE770 and really likes it. She said she wanted one like mine, but didn't want to spend the extra money. She wanted to be able to do the Disney designs, so that was the main reason she went with the Brother and then the PE 770 fulfilled all her needs. She loves that Brother has a package deal that had a large thread kit and a lot of other benefits when she bought hers. She bought her machine on the internet but the local dealer has been wonderful to her.