I actually like the XMB UI and I like that it's consistent amongst my two different Sony TVs and my PS3. The remotes for the two TVs are the same too, except the extra button for 3D stuff on one and the way in which you open the battery compartment.

This is a good a customer experience. I can upgrade my TV or DVD player or whatever I don't have to learn how to use a new remote or UI other than the new features.