Am I supposed to be impressed by this? I think people are now just using agents for the sake of it. I'm perfectly happy running two simple agents, one for writing and one for reviewing. I don't need to go be writing code at faster than light speed. Just focusing on the spec, and watching the agent as it does its work and intervening when it goes sideways is perfectly fine with me. I'm doing 5-7x productivity easily, and don't need more than that.
I also spend most of my time reviewing the spec to make sure the design is right. Once I'm done, the coding agent can take 10 minutes or 30 minutes. I'm not really in that much of a rush.
I would be impressed if I could say "here's $100 turn it into $1000" but you still gotta do the thinking.
I went the same way. At first I was splitting off work trees and running all the agents that I could afford, then I realized I just can't keep up with it all, running few agents around one issue in one directory is fast enough. Way faster than before and I can still follow what's happening.