Not hating on open source, just let people use what fits their expectations and needs and stop deterring them with gatekeeping :P
UX = user experience
I installed sync yesterday, and it's nice. It's very usable without paying for it. In fact, the only reason I could see paying at all is to support the creator. The ads are negligible. I had to look for them to notice em. Basically if you don't wanna use it, don't. Not very complicated imo. There's other apps and the web browser. Your paying for the interface not the content.