Parts of the blowfish are poisonous. Eat the wrong part & you could be dead within hours. I recommend going to a restaurant with a certified fugu chef.
Fugu could be eaten raw or cooked. My experience was eating fried blowfish in Taiwan. I think I remember it tasting like fried fish. To be honest, I was too busy being happy that I was still alive to remember what it tasted like.
Ready to try some? You might consider preparing your last will and testament first.