This resonates a lot with me. I often use AI for the plan and let it propose multiple possible implementations, I often have to point out the glaring easier / logical solution.

When implementing its often a lot of misses with a few golden hits. The other day it used flex for a table layout while our app uses tables everywhere sigh.

Another typical one is that it tends to prefere frontend aggregation and looping of data instead of letting the database and backend deal with it.

Using mix of claude, cursor composer and codex.