Main pouch, while wide and deep, is flat so more suited to notebooks and the like as mentioned in the 'Details' tab although bulkier items will fit.
Division between main and front compartments stops short of the bottom so all three can share the drainage hole. This might be an annoyance depending on what you want to keep in it. As can be seen in the pictures, the front flap covers the whole pouch so it looks sleek and tidy.
I'm using it for EDC, replacing a leather Taurus pouch. Main compartment has notebooks, ID and wallet. One front pouch has a Nokia 800 Tough, pen and pencil clipped. Other has Fenix LD09 clipped, keys with long fob hanging out and a Victorinox SwissTool XC sitting on top of the keys.
Other things that will fit in the front pouches:
Silky pocketboy 130
Samsung S3 Mini (modern phones of around 85x160mm should fit too)
Roland R-07
Garmin Etrex 10
Stanley 148ml Flask
Suunto MC-2 compass
Suunto A-30 compass (Silva's should fit quite happily too)
Opinel no.10 (probably also no.12)
Fenix E20
Mil-Tech lightstick
Aquamira Frontier Straw
The last four items will all fit in one pouch.