Astra has been quite good as well but I prefer Opus 5.5.

Definitely worth spending more time on the plans & auditing for quality. Once the plan is ready, I find that adherence to plan is quite solid.

Another angle I look at it is that the code is going to be imperfect regardless of review. The main criteria is whether the code is producing the business outcome that you are looking for. Does it fulfil the user stories? Is it performant? Do you have enough pre-release checks and balances to make sure its not going to cause issues.