I have used the Honey Stinger gels at times. They are quite sweet so I prefer SIS, but mixing in a few of Honey Stingers helps with variety.
I usually eat the waffles as a pre-ride snack as they are pretty tasty (right now I quite like the vanilla flavor). They are too crumbly to eat effectively while riding. Honey Stringer chews are also pretty tasty and I have used those on rides, but prefer the packaging of Clif Blocks.