I'll admit, my expectations were pretty low going into this - slots have always been too luck-based to keep me hooked - but I ended up having a surprising amount of fun with this.
This is due to a combo of the rollers being player-stopped, and the lights underneath providing a means to time your stops. With those two, this slot machine actually has an element of skill to it.
Having a heavy dose of that classic Duke Nukem charm DEFINITELY helped.