Honestly, the default styles are pretty bad. I use Claude in my scientific writing in a very specific way. 1. I write a paragraph. 2. I put Claude into concise style mode. I then ask Claude to revise for clarity.

I can write competently, but it's natural direction is towards emotional rhythmic flow that can convey emotion/passion...but which for scientific writing, can get in the way of clear clean communication. So, I write what I mean,and Claude straightens it out...and these days (i.e. not last year), it doesn't lose my meaning that often. And since I wrote it first, these AI-isms appear less frequently, and if they do, I revise them away.