Amp blew me away and was my primary workhorse. Much better than anything out there for a time.

But then I switched to GLM 4.6 using Claude CLI tool and that was good enough and significantly cheaper/faster.

Then Opus 4.5 came out with better pricing and might as well just use that directly. Still working great.

With Amp I was spending $5 here and there every day. Great, but pricey.