Moto G wall charger topic

I have ordered a Moto G from England (GSM global version I presume), and while I am waiting for it to arrive, I would like your advice on what kind of wall charger to buy that would be optimal for the phone charge recommendations since my knowledge on the issue is very minimal.

I read somewhere that Motorola recommends between 0.5 - 1.5A , but that doesn't really tell me anything.

I have an old Samsing galaxy SII. Can I use the charger of the Galaxy for the Moto G?