I think the center pocket is proportioned wrong and too small. I sometimes put a 3rd water bottle in there. It's also used for my park season pass (rigid plastic, 9"x4") iPhone, work badge, wallet, keys, or battery pack for helmet mount light. The side pockets are for things I access more frequently during the ride such as food/gel; or temporary storage when I am off the bike and don't want to leave the Garmin or lights sitting on the unattended bike. The larger items would not be comfortable in a side pocket no matter how large it was. That pump pocket uses up valuable real estate for those that just use CO2.
I like a slightly lowered collarline in the front. I get some chafing from the zipper on some of my jerseys.