How does it suck? I use it almost daily and love their Notion MCP

Can't limit access easily. You can do per-workspace permissions and that's about it.

I was probably a bit harsh.

It works, but models seem to have these insane long traces to do the most basic things. I had to create a couple of skills so they know how to properly use the thing without breaking, so they don't always try to pass the wrong parameters to it.

It also doesn't let us change a couple of things (like icons). Or, if it does, not even Opus 4.6 can figure out how to do it.