It really depends on what you like/are looking for.
The Man Who Can't Get Married was pretty good and is on my top 10 dramas, but it's not for everyone. If you just want something plain funny and don't mind having almost no romance until the last 3-5 episodes, this drama is awesome. If you're looking for something with a good story line and fast development, this is definitely not for you.
That Fool was also pretty good, it's kind of the opposite of most dramas, instead of a rich handsome charismatic arrogant guy and a poor woman, you have a poor clumsy weird not very good looking guy and a rich and beautiful actress. It's really not that amazing, but I like the fact that it's different from everything else and it's quite funny.
That being said, if you're like most of the people around MDL and you're looking for eye candy these dramas are NOT for you.