I like to use the stick-on foam indicators due to the fact that they are: 1) small and light, and thus easy to cast with 2)highly visible 3)extremely buoyant. Obviously, the knock on stick-ons is that you can't really adjust them easily, but I have had moderate success moving them up or down my leader. I like using them in water where I pretty much know how deep I need my flies to be. When I'm not having success and don't want to try to adjust the indicator, I just use a longer piece of tippet for the dropper. When I'm fishing somewhere I've never been before I'll usually go with a yarn indicator, as its shares many of the same qualities of stick-on indicators with the exception of consistent buoyancy, which in these cases I'll sacrifice for easy adjustments.
When I'm fishing tiny dries or midges, I like to use a big attractor or a larger, more visible version of whats hatching as opposed to an indicator. Sometimes when theres a lot of flies on the water the fish will go for the bigger fly.
And using indicators is definitely not cheating 😎