The sound is not like normal servo operating sound, and its only there from time to time. I guess it'll work out just fine.
Yes, some decals would be nice! None of the KO products include decals, that really sucks. When Peak includes decals with $3,50 brushes, you should include them with $250+ radio gear.
The user manual is also kind of cryptic, not super easy to navigate through and understand. Futaba manuals are a lot better......