Spring bars are NOT easy to work with. They’re easy to lose, hard to attach/remove, and definitely not quick. The Apple Watch release buttons are much better -

Spring bars are NOT easy to work with. They’re easy to lose, hard to attach/remove, and definitely not quick. The Apple Watch release buttons are much better - takes barely 5s to replace bands. Additionally, it detaches the part that holds the band, allowing for deeper customisation. This is the thing you normally need screwdrivers for.