In Full Metal Panic? Fumoffu! the episodes are shorter and more comical with less action and suspense involved, though some opinions may vary about how good it is. I myself like the military aspect of the original plot. But if you seen the first Full Metal Panic? at the end it talks about insurance at the last episode and just ties into Fumoffu. Though its more about high school life with Sousuke being Sousuke and with Kaname keeping him in line, though there are action parts its not really as suspenseful as the first but there are newer weapons and greater laughs. In the first few episodes Teletha Testarossa appears for vacation and goes to school with them and later goes away with. With those facts in mind I hope you can come up with your own conclusion by yourself. My opinion on the matter is its a fair show that is comical and pleasing to any anime fan. The only smack about it is that its short shows are well to short. Its basically like any second season of any basic anime show. I do like the original and the TSR which in my opinion are a little bit better then Fumoffu.