I went and picked up those bags last night. Between the sport bag and the tank bag I should have enough room for everything I take during the week.
The tail bag is big enough for my lunch, coffee, jacket liner, my warm gloves, light gloves and a few other things. This climate here necessitates taking the warmer and lighter gear. It can be in the 40-50s in the morning and in the 70-80s in the afternoon. It has expandable sides that give it another inch each way.
The other bag is pretty big. About the size of a medium sized gym bag. I don't think I'll use it much except for longer rides that I might take rain gear and such.
The tank bag is nice, it can hold my phone and chargers, misc gear I would like to have relative quick access to although the magnets don't hold quite well enough to allow one handed access easily. I can even have room for my bike cams and hardware.
I'll post a pic later.