Very impressed with my new Retroid Pocket Classic after replacing my TrimUi Brick.
Today I was messing around with the settings in those emulators, and I'm slowly starting to understand them. Cores, shaders, filters, states, hotkeys. It's funny how a slightly larger screen and a reasonably familiar interface makes it more inviting to delve deeper.
I mainly bought it for old 2D games, but PS1 games are unexpectedly great too and look beautiful when upscaled to 2x to get rid of the blockiness. Makes a world of difference.
I'm playing Colin McRae again now.