I bought an Everdrive X3 years ago for my birthday and I still get tons of use out of it. Only problem is that the reset button on my Genesis hasn't worked since I owned it and considering that RPGs like Wonderboy In Monster World have saves, I can't really save my data to the cart

It also works amazingly well with games from other regions (some aren't even NTSC patched), I think the only one I've had trouble with is Super Skidmarks