I like it! Short and sweet, and the mechanic stays welcome throughout the game (I like how tactile it was)
It might also be nice to have a sort of "maximum" amount of time that the shakers can be off-screen. I like the idea of an extra bit of challenge as you try and snag them, but a couple of times I found myself just waiting for the right spice to appear again and watching the meters go down. Once I did though, it did feel nice to get the meter just right and hit that "Serve Now" button to get it just in time!