I have a Brother PR 620 and use Floriani and Artista Software. I started with a Brother ULT that did both embroidery and sewing but never used the sewing function so I traded it for the machine I have now. The ULT came with software so I didn't really know what you could do without software. I saw and really liked the Artista software so I bought it and now use both it and the Floriani.
There is still so much to explore but for now, after buying multitudes of patterns, I have declared a moratorium on purchasing any more until I use what I have. Like buying fabric, it's easy to go crazy.
I'm looking forward to this thread and now much easier it will be to see everything.