I would love to have the Expression
I own the Slice and (since mine is working fine) think it is a great value!! HOWEVER- I would stick to what you have because Customer Support(read reviews & I have a friend who had bad experience trying to get response or help when her Slice stopped working and she did all the trouble shooting). Her experience discouraged me from any further purchase in fear for my Slice going out.
But from what I have, I still enjoy using it. No, some of the cut outs are not perfect but I am usually able to fix the problem if there is one.