EZ-Flash Junior

I really love this thing! It allows me to carry the majority of my Game Boy games without having to lug a bunch of cartridges around. It also works well with modern third-party homebrew games. You do have to upgrade to the latest version (version 4) to get the most out of it, but it only takes anywhere from 30 seconds to a minute to update. After that, you're good to go! I played some Castlevania Legends on it earlier and it works very well.

It’s just not working

I’ve tried setting up the sd card every way possible and I’ve looked at many, many videos on how to set it up. It just stays on the loading screen or just glitches out, I’ve tried getting support but they stopped responding awhile ago. I hate to say it but it’s been a waste of $60.

Works really well, high power usage

The cart itself works really well but is quite the power hog. Be prepared to buy extra AA or AAA batteries depending on your game boy. On game boy pocket in particular the battery life goes down to ~4-5 hours