The Rose using a programable embroidery card. In order to put designs on the card you have to have a reader/writer. I am not even sure if they are available anymore other than a used one. You can't just go buy the designs already on the card. When I bought my card it was about $150 new. The reader/writer was $300 new. I am not sure what used prices are.
I have a Viking #1+. It was the top of the line at one time. It using the same embroidery setup as the Rose. I love it but don't use the embroidery unit with it because honestly it is a hassle.
If you are going to use the machine for just sewing/quilting it is a great machine.
I also have a Viking Quilt Designer machine. I bought it used years ago because I wanted the needle up/down feature. This machine uses D-cards for all the different types of stitches. They aren't made by Viking anymore, but I have seen them on Ebay from time to time.