WARNING - I put forward some "robust" views in the next section!
Autofocus speed not quick enough for fast-moving subjects
Autofocus struggles in low light
Significant vignetting, with any correction baked into Raw files
Lack of included charger makes it harder to keep a spare battery charged
No built-in viewfinder and accessory options rather expensive)
they write this:-
For comment and discussion - join me over at Google+