I've have one, (Standard Lodgepole), and really like it. In addition to the fastener to close it, the flip cover has two rare earth magnets that mate to the bag body. They work and stay closed for keeps yet open very easily. The inside has five inside pockets that hold segregated C&F boxes. There is also a large zippered compartment inside where I store my keys, phone and extra "stuff". It's quite large. Then of course there is the large main compartment in the bag. I use two types of floatant and keep both in the large main compartment, loose. I reach in and can tell by feel, which is which. I also keep tippets, leaders shot and it isn't even close to crowded. The rear has another large zippered compartment where I keep a first aid kit, camera and rain gear. On the side is also a small pouch for smaller things and places for D-rings. I keep hemos, nippers and a drying patch hung on a D-ring outside the bag. There is room for a total of six D-rings. The only thing I haven't dialed in yet is net storage.
Regarding your concerns about resting on your side, it does. Mine rests just above and on my thigh with no fatigue or discomfort. It definitely does not get in the way.
If all this sounds like a lot, it is. It may not be for you but until you have the opportunity to look at one in person, I would not rule it out. I b ought it originally for summer days. That was two years ago and I have yet to wear my vest since I got it, summer or winter. Good Luck and let me know how you make out.