I caught on to Jay during his time on prime time, and he has been my favorite comedian since. Why everyone is suddenly hating him is beyond me; the situation at NBC was unavoidable with all around bad ratings, and they went with the guy who brings in better ratings, which is Leno. Now, before all you Conan fans start hating on me, I like Conan too, but I prefer Jay.
Moving on, as with every comedy program, especially daily ones, some episodes are funnier than others. I must say I liked The Jay Leno show more with it's more-comedy-less-guests format (Earn Your Plug was a lot more interesting than interviews), but this is good too. Jaywalking and Headlines are hilarious, and his interviews are sometimes comedy gold. Some of the less frequent comedy segments are my favorites (Cop and Kitty is one of the funniest skits I've ever seen, and JMZ is good too.)
I watch this show every night, and I see myself becoming a long time viewer.