A small weakness but I have noticed:
The adapter is probably not for safety plug (with the ground) well suited. I leave on holiday without a power strip here, because the attached devices do not draw much power anyway. Plug Makers have always grounded plug. This can indeed be used with the adapter, but it's a bit force necessary to use a safety plug can. Presumably, the adapter is not designed for it, because you abroad has also not always an earth conductor (earthed).
Very good, I like the extra USB port. Many USB devices can thus also invite and you can possibly do without the phone charger in his luggage.
