This bag is just what I was looking for. Holds just the right amount of discs (plenty for doubles of everything I will want to throw, and room for another 3-4 to spare in case I want to bring some for buddies who don't yet have the disc golf but but are willing to take a hike and try it out. Water holder pocket is great, and if I save a little space in the disc pouch part it'll fit a couple cans of adult beverages as well. Sling bag setup means it's easy to do and doff which means I take the time to put the bag down and focus on my shot. At first I wasn't sure about the metal clips on the strap but I realized they also enable it to double as a hat holder, just unclip, slip the strap through the back of the hat, and clip back in to the bag, boom, don't have to hold your hat if you want to take it off. Huge top flap with multiple magnetic fastening spots holds well, and the collapse/expand feature for the main container section works super well and keeps the bag compact when you want that, and roomy when you need the space.
A separate special note just to give a kudos to Brian, his customer service is above and beyond. That means a lot when things go wrong, but even more because everything went well with the purchase process. I'm glad I ordered directly from Rogue Iron's site. They also plant a tree for every product registration which is just downright awesome.
