The Everdrive GB X5 works great. I've had no issues with any games on it. Saving has worked perfectly in every fame so far. Worth every penny.
Very easy to set up, plays roms nicely, and the transparent red looks great.
Love my everdrive, it was easy to setup; I have the complete GB, GBA , GBC, NES, Master System, and Game Gear libraries installed on a 32gb SD card. I recommend using a program like romsort to alphabetize the game library; it helps make navigation easy and load times quicker. Takes my everdrive no more then 5-10 seconds to boot upon power on. Highly recommend this product especially if you’re looking to play rom hacks, or download games that resell at ridiculous prices.