Honestly, Pinafore is the only interface I need for Mastodon, and the main one I've used since I started developing it. I know the Mastodon frontend has tons of features Pinafore doesn't support (trending hashtags, server announcements, profile editing, etc.) but I just haven't felt hugely motivated to add those.
I'm conflicted between wondering if this is me just being chauvinistic, or if it's actually a low-key value-add for Pinafore that it doesn't have a million bells and whistles (which would probably make it slower, etc.). Maybe some users like a more stripped-down interface where the cheese doesn't move much?