I ordered one of these a little while ago, with the purpose of using it for storage at home for all the little accessories: batteries, lens caps, memory cards, air blower, etc. etc... and for that use it's perfect!
however I would never use it to take about and about 'in the field', as the 'door' on the back is not particularly well padded. the bag itself is also not very deep. as you can see in the bottom right of the image, the dslr peeks out above the padded walls. when this is zipped shut, the 'door' won't give much protection.
i'd much rather invest in a Lowepro, Crumpler, etc. which will pad and protect much better. But for storage at home, it's perfect!