If you are looking for a Powerfast Charger, and occasionally leave the UK, then this is a much better bargain than just buying a UK plug. Currently the European sites aren't marketing this as a Kindle powerfast charger- well it is. There are faint markings just by the USB socket stating that it's output is 9 Watts, 5 Volts and 1.8 Amps. Although bought for the Fire HD tablet, I tried the UK only version for my old but still power-hungry versions of iPad and iPhone and it was amazingly speedy.
The square transformer unit is chunky--but much less so than Apple's international offering. There is a good quality lead and 5 different charging plates which connect to sturdy looking C-shaped metal lugs on the transformer unit. The marketing image is incorrect as the UK plug is slightly larger with a lip (exactly like the normal UK Powerfast unit is pictured).
The five changeable heads (referencing the Wikipedia page on mains electricity) appear to be:
Type A two pin USA and China
Type B two pin with holes drilled in the end, USA new style, Japan
Type C two pin Europlug (oval head)
Type G three pin UK, Hong Kong, Malta
Type I two pin angled and round head Australia, NZ
No reviewers to date seem to have issues with travelling. There are always going to be some more specific places that need additional adaptors. I tried looking at reviews of multi socket adaptors with USB- they seemed to have fairly mixed user experiences and be tied to the old, lower powered USB standard.
So I irritatingly bought the UK only product before...so now you don't have to miss out!