Ambassador is free so that's a good thing. I like to keep things simple so I got Buzz Tools just so i could see the designs and know what i'm choosing to load. Buzz Tools is kind of out-dated now for tech but it works for me. Free would've been much better! i also have PEDBasic which is a dandy little no-brainer program..it writes to cards. I find i use it the most bc I only embroider in spurts and dislike having to re-learn the process each time so i turn to what i know best. I have the 770 and like that it uses both cards and the other too. Interesting about the sulky..its all i use and seems to work fine for me.