As long as you keep the apps up to date both on your devices and the server, I've had zero issues with it!
I just wanted something similar to Google photos which i could set and forget, other than being a bit lazy with managing my NAS, it's been flawless! Plus it's the benefit that my data is staying with me ๐ฅฐ
This will definitely be a TED talk in the future and silicon valley people will think the person(likely a man) is amazing and "ground breaking"