I am not into embroidery but, if I wanted to get into it, I would really want a separate embroidery machine. I have seen those machines work, and it takes quite a long time for them to complete a nice embroidery piece plus you need to be available to change thread colors for the machine. I would want two machines so I could be piecing or quilting on one while the embroidery machine is working. Getting up to change thread color once in awhile is just a good thing to do physically.
Have you considered getting two machines -- one for piecing/quilting and one for embroidery?