I have owned rabbits, guinea pigs, cats, and a dog and I must agree fully with Kalandra. Hogs are completely different from the rest. I have two right now, and both are extremely different. My girl is very loving and adores attention, where my boy isn't fond of cuddle time and is much more independent. I have noticed that hedgehog require more patience then rodents (in my opinion) and they should also be more respected for what they are. If someone wants a little snuggle-ball o' quills, this is not your pet. Also, because my boy is tempermental and grouchy 99.999999999% of the time, that means if I want to bond with him, I meet him on his terms (which usually requires dim lighting, blanket to cover him up, slow movements and quiet voices). . I handle him nightly for an hour to two hours and he requires much more patience and more attention because he is the way he is... He has loosened up quite a bit, but he is still just my little spine-ball.
They are nocturnal. Again, this poses the whole "respect" issue because you will have to get them out to play on *their* schedule. : )
Another bit, these guys have to be kept in a warm room. Warm meaning between 72-78 degrees Farenheit. If they are not kept in a warm room, they can go into hibernation which can be deadly for our little ones.
As with a lot of animals, hedgehogs also require a very close eye be kept on them to check for signs of illness (hedgehogs are GREAT at hiding it!).
Pogs are a very interesting pet. :>