I've been using GPT-5.6 Luna for everything at this point. It is more than enough to do all the work I need to do. You have to lead it by the nose, but if you know where you're going it works really, really well.
Pro tip: use 5.6 sol, and tell IT to lead luna by the nose with subagents.
I feel the same way with Cursor Composer 2.5.
It seems there are two distinct groups, one which is doing relatively well with Luna, Deepseek Flash and similar models while other seem to be satisfied only with the state of the art.