I picked up a couple of these in this size and larger for my new espresso machine and they're just really nice plain mugs. The white is soft, the mugs are nice to hold. All around just the platonic form of a good mug.

Nice quality cup, decent price and handle loop is actually large enough to use comfortably.

I like the colour, it's subtle but nice. I chose Feijoa (which I've since discovered is actually an interesting sounding fruit I want to try now!).
These are pretty thick / heavy duty well sealed (non porous) with a nice bright white interior. I really like that you can actually fit your finger through the handle, unlike some other fancy cups (Loveramics, and Inker, which I also do like). The loop is comfortable and large enough to put a finger through even on the smaller espresso cup size.
I like the big ACME logo on the bottom, maybe it reminds me of old cartoons or something (good nostalgia based marketing?)

Good looking cup. I bought 2 of these, so I can make 2 cups of cappuccino from one double shot.

Beautiful and well made. Love them.