I'm so glad there is a Mos Mos closer to my office! It is located in the Exchange Tower food court (the one with the Burger King). They have a good sticker system in place to get you from ordering your drink to cashing out, however, when it's busy they will almost always have someone standing by the stickers to help you quickly figure out your drink order. Don't be intimidated by all the stickers! I love that they steam the milk when you order coffee and that their drinks are well-made, easily customized and well-priced. Sometimes there is a line-up but I don't even mind as the line moves so quickly. I love the friendly service here, I've yet to have a bad experience.
I've had their baked goods several times and I would say that they are too sweet for my liking, with the exception of the fig pistachio cookie.
Overall, a solid place for coffee that I choose over Starbucks any time I can help it. Worth a visit if you haven't been!