I was sick in bed last November, and watched an episode. Thought it was pretty good - it was 2nd episode with Jordana Brewster.
Since then my wife has gone completely crazy for the show. We watched every episode of the first two seasons in teh last 3 weeks.
I get a kick out of all the obscure 80s references that they make. It's curious to me because the cast may not be getting them because most of them are 20 somethings (plus the leading lady is an Aussie - and the references are 80s pop culture), but me, in my 30s I get the odd in-jokes. An example is from the 1st season when a characther was named Vaughn Hayes.
Plus I live in LA, and know Burbank real well.
I think it's time for Chuck and Sara to break up their cover relationship, and then have them date for real, but then they have to hide the fact they are dating from everyone. Seems like the natural narrative progression.