Yes, Rybowe Hub is safe to use. To be safe, you can always do a quick search, like "Is Rybowe Hub legit?" to double-check. Also, make sure you're executing rybowe hub directly from his official sources.
Depend how do you use rybowe hub. If you use rybowe hub blatantly (fly etc) you can get banned. But if you use it secretly you have low chances!
Rybowe Hub gets regular updates, usually within 24 hours, to keep everything running smoothly and stay compatible with the latest changes.