I went to Sub Zero after it was highly recommended (pushed really) by a friend of mine. In fact, she insisted on taking me and I am so glad she did. When we arrived it was fairly busy but the line moved quickly enough. I chose to have a small with the premium base (of course!) with a coffee (mocha?) flavoring and almonds. The small was the perfect amount, I'm not sure I could have finished a larger size.
My ice cream was too cold to get my spoon into, so I asked them to stick it in the microwave for a few seconds. Instead they made me a whole new one! I was grateful, but felt kind of bad for complaining. The second one they made was the perfect consistency and was absolutely delicious. My friend had a smoothie and it was really good as well.
I have to say, the cool factor is not lost on me. I absolutely cannot wait to take my kids!