Honestly, I don't have a problem with the overall design of the charger. I can very easily snap it on with one hand.
But what does suck is that the charger was DOA!!
Got my shiny new watch yesterday, marvelled at it for a while, until it died. Went to charge it, and nothing... And it's still dead. Damn charger!!
Glad I bought from the Play Store though. They were very easy to deal with, and are sending a replacement already. Couldn't ask for more on Google's behalf.