DH wants a pressure cooker and he's asked me to buy one. I'm not a fan of the pressure cooker in fact I'm scared of them - they seem kind of dangerous to me and I'm always convinced that they will explode and shower me in molten meat and hot metal

Anyways..... what is better stove top or electric?
Are there any brands to watch out for?
Do I need non-stick?

ETA - For a family of four what is a good size?