Use it since ~6 month. It is fast and works without bigger problems. But you have to learn and accept, that you can not modify much things like in prettier,. You have to use it as it is. That is the philosophy of their tools.
And after a while it is ok. You realize, that you spend before much time to modify everyhting, that is not really necesary.
3 years of using prettier and I still curse it daily for not letting me have more than 1 empty line to delineate related sections of code in large files for readability.
Add `// -----------------` in between blocks to work around this issue, and IMO provide much better delineation of content blocks e.g. imports vs definitions.
I do miss C#'s use of macros to allow defining arbitrary blocks that can be named and folded though.
It is quite stable at the moment. I would still recommend taking a close look at the changes that Rome suggests, especially for large codebases: I think that some bugs are still expected.
The LSP (VSCode extension) is less stable at the moment.
The tooling itself is in relatively good shape in my usage, although the VS Code extension currently has a number of rough edges (frequent crashes, etc.).
It’s worth a try, but wouldn’t necessarily recommend ‘switching’ wholesale at the moment.