The expanse got better as went along. My wife and I watched the first series and were so thoroughly unimpressed that we left it until there was a series four. One of our kids insisted we try it again. We enjoyed it the subsequent series. I think it's because we hadn't read that far in the books, so we stopped comparing.

I gave it to the second, just didn't get into it - tried that process twice

Not for me 🙂

The Witcher is on our list for over the holidays...

I liked The Expanse but my wife didn't, so I think we left it halfway through season 1. At some point I may try to watch it again from the start but my wife is home nearly all the time so I don't get much time to watch stuff on my own (and we have so much to watch together -- between Hulu, Netflix, Amazon, HBO, and Disney+ -- that if something doesn't grab both of us, we just tend to forget it).