I have a Viking 550. Pretty much the same machine. I bought it because I read really nice reviews on it. The Viking feet are as everyone says...you gotta stick with the Viking feet and the correct class for your machine. Your Lily takes Group 6 feet like mine. I have the walking foot and yes it was expensive but it's really nice. I haven't compared to my other machines because it's my go-to machine for the walking foot lol! Congrats!