I actually didn't much like the first half of the show. Having watched the original 1982 series, I immersed myself in the dynamic between Michael and KITT as they solved the cases, and only just in the last few episodes did I feel that same magic happen between Mike and KI3T. There were still plenty of moments I enjoyed, and the other side characters are all great. It was just starting to get good, and it goes and gets cancelled without even a second season. Such a shame. It's a worthy watch, if a little over the top as far as the showy tech and special effects go.
I've seen a lot of hate on this show, and honestly a lot of it is just people going "not muh" and touting the 1982 series as so much better. You know why the original seemed so much better? Characters were given room to grow, and that takes a lot of production. Knight Rider 2008 had just barely begun tapping into that potential, so of course to many it's going to fall short. This is a suitable sequel series to the original, I'm just sad it had gotten cancelled after 17 episodes.