I can only second that, and it's only getting better over time. It used to be quite fiddly if you wanted to work on the String rather than the byte level, but that has improved a lot.

I've written 4(?) different parsers with different major versions of nom, and each has been easier than the previous one.

The main thing I'd like to see improved related to it would be `cookie-factory`, its basically symetric serialization library.