Start with the bad - the host Tom Papa - HORRIBLE! Like seriously - HORRIBLE!!! This Pee Wee Herman wannabe (and is there really such a thing?) is SO over the top and such a flake, that if I stop watching the show - HE is the reason.
Not going to bother describing the rest of the show, as that is done well enough above. The guests are well picked, and surprisingly quick on their feet (Ricky Gervais was awesome, and Madonna was a pleasant surprise, for examples). There are some problems with the show though, in that while many of the couples problems are legitimate, some are obviously there as a joke. Jokes are good, but there is such a thing as too much comedy. Also, at times, the guest responses seem a little "rehearsed" - which definitely detracts from the overall show.
But ALL will be forgiven if they just FIRE TOM PAPA!!!