I love this bag. I wasn't a yummy mummy from the very beginning and didn't prchase the between until my daughter was nearly 12 months old (and I was also beginning to get my figure back!)
I didn't have a 'nice' changing bag in the beginning and just used to lug round a HUGE overnight bag filled with all the baby stuff. To be honest I don't know if I could have managed with the between for a newborn, especially a bottle fed newborn, as the amount of stuff you need to carry around might not fit unless you are a very light packer. However, for a todler or older baby I have found that this bag is more than sufficient.
Ju Ju Be are well known for the beautiful patterns that they use for all their bags, mine is in a fabric called lush paisley, which is green swirls, but they have many different patterns that they change frequently.

Now the bag itself has got a multitude of different pockets and compartments. You cannot just shove a load of stuff in it asif it were a holdall. In fact if you try this you will find he bag very small. There are two main compartments with pockets and zippers so that you can organise spare clothes, nappies, wipes, snacks etc. At the back their is a further compartment that hold the (small) folded up changing mat, which comes in the same pattern as the bag. At the front their is a Mummy pocket which can hold your wallet, phone and keys. I do like this feature as it makes it possible to dump your handbag when going out and not end up carrying TWO bags everywhere. On each side of the bag there are 'bottle pockets' which fit most conventional sized bottles in. They will also fit fruit shoot bottles or any toddler cup without a handle. It's a bit of a shame that you can't fit handled beakers in the pockets- but I love this bag so much it really is a small price to pay (although the price tage for the bag is definately NOT small).
The bag is designed to be clipped to your stroller using the be connected stroller clips, so there are metal D rings on the strap for this. I use the bag in this way and it is much better than slinging it over the buggy handles. Finally, there is a padded part on the strap so that the bag is comfortable on your shoulder- honetly Ju Ju Be have thought of everything.
The bag is very well made and is machine washable for when it starts to get a bit gruby looking.