This is a review of the Surwish card alone. I like the Brick, I don't like the Software. Brick is 4 Stars at this time because software is currently in Beta and stock is a disaster. The Surwish card is even more buggy version of Stock.
For the $40, you get a $18 SD card, all the BIOs, ROMS, and a better OS from Stock. Better doesn't mean great, but it does play games. I suggest you aquire your own Roms, Bios, SD card, and follow a guide to install MinUI at this time. Maybe updates to Crossmix will improve it, but currently it's too buggy to pay $40 for this. The LED settings don't even all work, basic stuff.
My problem is I expected this to be a curated and configured set of games, but a lot of these Roms are broken and clutter the OS. Systems included don't necessarily run well, and it runs on Retroarch so expect a convoluted setup process for each system and game that does run, it's not setup for you.
I bought the card for Surwish, I used the Roms and Bios to setup MinUI on a different SD card I paid much less for, and I don't plan to use Surwish until it is much more stable and customizable. It's currently quite obnoxious to use since you'll mostly be using Retroarch.