Does anyone have any experience of these? my DD16 has decided she would like one, I am not averse to the idea in principal, apart from the fact that I feel sorry for creatures living alone without friends. 
but need to know how hard they are to look after, I just know it will end up being my responsibility as they live for years and I cant see her taking it to Uni. I really don't want live insects in my house, can the eat the dead ones? Also am cornered about heat, she says they just need a heat mat, but will it need a light? Not sure about this at all but said I would think about it. Also I keep trying to remind myself of the hamster she really wanted that now lives in the brothers room and she could care less about. I have left it at the moment that if she keeps her room clean for 3 months and buys the stuff it needs out of her own money I will think about it.