I have had 3 in the past few years...
Started off with a Janome 350e - great machine, max hoop 5x7. I wanted a bigger hoop...
Sold that and bought a Janome MB4 - 4 needle, heavy, loud home commercial machine. I hated it and sold it - to someone with a home embroidery business and she loves it.
Bought a Brother 4500d and I love it. love love love it. I don't use my machine as often as I should I'm sure. In fact, it's been a long while since I have used it but I do have a lot that I want to make on it in the upcoming months so I better get started on it lol.
I would not trade my Brother 4500d for nothing.