I dropped cursor for the precise reason you mention: reliability.

Countless times my requests in the AI chat just hang there for 30+ seconds more until I can retry them.

When I decided to give Claude Code a try (I thought I didn't need it because I used Claude in Cursor) I couldn't believe how faster it was, and literally 100% reliable.

EDIT: given today's release, decided to give it a go. The Composer1 model _is_ fast, but right at the second new agent I started I got this:

> Connection failed. If the problem persists, please check your internet connection or VPN