If you have the money, go for it! Like said before, they're very easy to get acquainted with if you're experienced with Tamagotchis already. The link that jappyx posted helped me out with mine a lot.
A note, I was surprised at how large they are! You can't clasp the entire thing in one hand like the American/UK Tamagotchis, so transportation is a little tougher... I was used to just carrying them in my pant pocket or something.