I'd gotten this to replace my Pampered Chef cup that had cracked after several years of use. Well, since this interior cup is opaque, you aren't easily able to measure out liquids in it, like the PC one. That said, this one slides much more easily than my old one and works great on the gooey solids (Peanut butter, anyone?) that need pushed out. I'll just use other measuring cups for my liquids.
Rating: [4 of 5 Stars!]