The instructions were straightforward, but I thought it was a little weird that it called for vinegar in the mix. Here's the result: Nice red color, decent flavor, much more batter than needed to fill 12 cupcake cups (I filled them to the top and still had batter left over).
Here's the setup before I ate the first finished cupcake. The dot is part of the Sprinkles experience (at least that's what the instructions said). They were included with the mix.
Net/net: Well, for something from a cupcakery that has received as much press and accolades as Sprinkles has, they were not awesome. The cake was dry and flavorless. Red Velvet cake should taste chocolate-y, but it really didn't taste like anything at all. The batter said it would make 12 cupcakes, but I filled them to the top and they overflowed, creating a big overhang that wanted to tip the whole cupcake. The frosting was incredible, but wasn't enough to salvage the cupcake itself. And the dot? Rock hard, shattered when I bit into it, and made me afraid a tiny candy shard was going to embed itself into the roof of my mouth. Total Bummer. I hope the Lemon is better.