Yeah, I've been building a fairly complex app with Claude and it has been great. Backend stack is a Go service, with TS front end and a solver running or-tools in Python.

I do think I do a good job of being very structured at breaking down my requirements and acceptance criteria (thanks dual lives as a devops and SRE guy and then PM). Extensive unit testing, discipline in use of sessions and memories and asking it to think of questions it should be asking me before even formulating a plan.