I really wanted this console and I actually actively searched for it since launch... Well, I managed to finally get one, when the stock showed up online for one of the nations largest electronics retailers so, I bought it.
The first thing I noticed, is that the console is crazy small! However, it's still twice the size of my Raspberry Pie so, it's not unrealistically small. Yes the wires are stupid short and even the Wii Classic Conttoller isn't really any longer so, you'll need to buy the extenders or a wireless controller to make this work with a larger screen (Or you can sit right up on top of the screen, good luck with that).
The graphics on the console are very good considering these games were 320x240 when they were first created. Pixel perfect on my 4K TV actually is impressively clean. I was fairly impressed with this aspect of the console and think Nintendo managed to bring the experience alive very well.
So, what's wrong with the System and why am I only giving it between 2 and 3 stars? Well, for starters the console has input lag that is noticeable in some situations (It is not my TV, that is among the best on the market for Input lag). Second, what I'm finding is, there's a reason I didn't play 2/3rds of these games to begin with!!! The games just didn't appeal to me and by today's standards, they haven't aged well in terms of a quality game play experience.
Sure, some of the games on the console take me back to my youth... Like, Punchout, but I was let down by the lack of Mike Tyson (They could have made this happen for their fans). Also, Tecmobowl isn't 100% compatible with the emulator either as sometimes plays that you picked should breakdown and they don't... Or, you try to block a field goal and you're there ahead of the kicker, but he still gets it off.
Of all the games on the console, these are the games I find worth playing...
Super Mario Bros
Super Mario Bros 2
Super Mario Bros 3
Mega Man titles
That's not really a huge list, and the games I find curiously absent are
NES Pro Wrestling
Tecmo Pro Wrestling
NES ICE Hockey
Dragon Warrior 3
Seriously, they couldn't ditch Balloon Fight (I liked it better when it was called Joust), Dr Mario, or one of the other lesser known games for those they left off?
With all that said, I understand that people have hacked the platform to make it run more games and even Genesis games... However, I'm struggling to see where this little console fits, the Retro Pie simply does more and does most of it 1000% better at a similar or lesser price (if all you can find are scalpers listings).