For me I know CSS quite well, but I would always have to look up some utility names that had no intuitive mapping. line-height is leading, flex-direction has no direct mapping, text-wrap is text but also font size is text, so if trying to do font-size:custom you had to do some weird syntax unlike the other custom value syntax lest it confuse text-[1rem] with a text-wrap rule. There are a lot of these weird decisions.

I love tailwind and will continue to use it, but it isn't perfect in this regard...