I don't know how to make apps or evaluate code, but with astra I having been making an iOS app on my own for the first time and it's going great. my app is not terribly complex but requires using bluetooth and other intricacies which I thought would be tough. but it's going really well. I'm not asking it to one-shot it though, I'm going feature by feature, testing and building up.
yes, at first it would run simulator tests on all font sizes but it stopped after I asked it not to do that until UI review
maybe sol would have done the same thing, idk. but I find the whole process to be really nice with astra. I use it on high unless it says something is impossible then i go max and ask it to find alternatives (happened once)
I've been making a macos app with opus 4.8-5 and at first it was great, everything materialized in a week, but when I started tuning stuff and fixing performance problems I have spent a very frustrating month refactoring code where I had to constantly catch llm red-handed and explain and sometimes push obvious ways how to make things work properly (a general knowledge from a completely different stack). In the process CLAUDE.md and memory grew exponentially explaining what it should and what it should never do.
were you letting it run for hours like the OP, or doing short tasks and reviewing/testing each one? every once in a while I also ask it to consolidate/summarize docs and stuff like that. we'll see what happens in a week though