I have a SunTouch. The biggest drawback is it cannot handle more than 4 "circuits" and only has capacity for two pool/ spa actuators and one "extra" actuator for controlling a water feature. We don't have a spa, so we tricked it into thinking the waterfall and grotto are a spa. Thus when we hit the spa button, it switches a 3 way valve to divert most of the water from pool circulation to the water features. We used the spare actuator to drive water to the slide so we can turn that on/ off separately. So, our 4 "circuits" are set up as follows:
1- turns water features on, ramps pump up to speed 4
2- pump speed 1 (pool filtration cycle)
3- pump speed 2, booster pump comes on (cleaner cycle)
4- pump speed 4, slide valve opens
Each of the above circuits can be programmed to run up to 4 times daily.
The SunTouch has a built-in program for the cleaning cycle that starts up the booster pump, so the only way I can think of that you could run a waterfall pump is to trick it into thinking you're running a cleaning cycle (this is assuming you don't have a pressure-side cleaner).
EDIT- some additional clarifications- if you want to turn the lights on/ off from a remote then that will take up one of the four available circuits. Same thing if you want to control the Intellichlor. The SunTouch can control all these things, it just can't handle more than 4 circuits which is why it's so cheap.
Also, SunTouch doesn't come with a remote in it's base form. We added a QuickTouch remote setup to ours which allows simple on/ off control of each circuit.