My two biggest complaints with Claude 3.7 were:

1. It tended to produce very overcomplicated and high line count solutions, even compared to 3.5.

2. It didn't follow instructions code style very well. For example, the instruction to not add docstrings was often ignored.

Hopefully 4 is more steerable.

True, I think the biggest problem of the latest models is that they hopelessly over-engineer things. As a consequence, I often can only copy specific things from the output