The entire application seems to exist to steer you towards using Grok and whatever new product Cursor's team has pumped out this week. You're constantly prompted to switch to using a Cloud agent, including the UI seemingly changing as you're working which caused me to accidentally select a cloud agent instead of my local system a few times. There are daily pop-ups in the app to check out this and that new thing, these are at least pretty easy to close and ignore. This morning Cursor decided to select a new Grok model by default without prompting, which I didn't notice until it had spent 10 minutes burning tokens on a simple bug investigation that Opus resolved in 30 seconds.
I finally bit the bullet and setup Pi with Open Router the other day. I still prefer the UI of Cursor but this is like death by a thousand cuts.