This is the best $20 I've spent on my Steam Deck
$20 and an hour later, my Steam Deck feels better than ever.

One of the main reasons I've stuck with the Steam Deck over more powerful gaming handhelds like the ROG Ally X is the build quality. Other handhelds are built fine, but you immediately feel the quality and consistency of the buttons and joysticks on Valve's handheld. That was until I picked up the GameSir Cyclone 2 controller for my desktop. It's a decent 2.4GHz controller, but the differentiator is that it comes with micro-switches for the D-pad and face buttons. I fell in love with the tactile feedback, and suddenly, it was hard to go back to the membrane-based buttons of my Steam Deck.