anyone got one? whats your thoughts?

we were shopping last night in dubai and i bought my sis one as shes been going on about it none stop (least i could do since she put me up in dubai for 2 weeks, and has offered to do so permanantly should i choose to move out here )

anyways i cant decide if to buy myself one now ive had a mess with hers, anyone had/heard of any probs with them, its a long way to come back to change it if it breaks