I’ve seen the TV show and that’s what got me hooked. I recently started to read the books (to see what happens after season 5, to be frank).
What surprised me: the books are as good as the TV show. Which is an amazing thing for the TV show, of course. I actually think the books are a little too much some times, but the TV show streamlined them a lot and mostly for the better.
If you enjoyed other and you didn’t read/watch the other one, I think you should give both a chance.