I've never tried the soups, they just don't appeal! But I have tried pretty much all of the shakes. I only like the chocolate tetras, strawberry tetras, choc mint, strawberry and chocolate powder shakes. That's it for me!
I found the banana tetras revolting, the vanilla and banana powder shakes always tasted 'bitty' no matter how much I blitzed it in the blender, and the others just didn't float my boat! I used to like the porridge but this time round cant stomach it at all.
Just remember that your tastes WILL change as the diet continues, so even if you don't like something initially you may well end up loving it!