That way of re-arranging using the zip-function is quite clever, would not have thought about that!

In my opinion, they are worth it. They become much easier to read once you know a few concepts, and they are very powerful even when you are no expert at regex. Downside is that they are not maintainable for someone who hasn't spent at least a few days practicing them. I recommend this resource: https://www.regular-expressions.info/, it is much more in depth than the many online regex-tutorials, that are just way too shallow in my opinion (you can find the book of the website's author if you search it)