I like it because it syncs easily with GrayJay Desktop which works way more often than FreeTube does in my experience.
It also has built-in SponsorBlock and adblock without sacrificing functionality (a lot of NewPipe forks take a while to update after a change from YouTube).
It also has support for other things (Twitch, PeerTube, etc.) if you're into that.
You can limit results by quality using AIOStreams (ElfHosted community instance (rate limited & no Torrentio))
I've been selfhosting AIOStreams for a few months and it's super easy to use and merges every result together.