The spare battery is very good, in my experience and keeps just as long if not longer than the original battery.
The memory card had to be replaced at me once: The set was originally offered with a Extrememory memory card that was unfortunately already broken with me after 3 months and no longer readable. A brief e-mail to Bundle Star and the card has been replaced completely unbureaucratic within 2 days by now offered Samsung Card! 1A Customer Service !! The new card works perfectly and has read and write values in a class 10 card.
The set is the perfect addition to my camera and I am absolutely satisfied.