I have both and surprisingly I use the coffer much more often than the work. I have found that it's easier to carry the coffer cross body whenever I go shopping. I like the outside pockets on the coffer where I can put my keys in one and my iphone in another whereas I have to really dig and rifle through the work to find either one of them. For me, coffer just seems to be a more practical bag.
Nevertheless both are gorgeous and different in its own way. GL and please let us know what you decide.