I've never used a more comfortable controller tbh, it feels like the natural evolution of everything everyone ever did in shape, sizes and all. The concave sticks, the triggers, an improved D-pad, the asymmetric sticks, etc. etc.. I can easily go using it the whole day without issues, whereas many other consoles hurt my hands after a while or have other design issues (eg. the Joy-Cons with their shitty D-pad and the odd convex sticks, the PS4 controller with its symmetric sticks and weird touchpad, etc.). I'm aware it's not perfect for everyone, for example one of my cousins has quite enormous hands and it would be painful to "crunch" his hands for so long, but for me it's like the ultimate controller design as of now, with very few weak points. The RB button seems slightly less resistant than others, maybe, as I've had issues with that in the past, other than that I'm finding it great.