This show doesn't do anything special, each episode is painfully slow and boring, the writing is the most predictable schlock and the voice acting is grating.
Using the excuse that the show is just made for children is unhelpful. There is a plethora of children's television with real passion and creativity behind it, and to lump it in with low effort cash-grabs like this really undermines the work that goes into those shows.
Yes, kids are easily impressed by just about anything, but would a child *really* look back on this show as something memorable and important to them? Would they *really* feel a sense of nostalgia or attachment for something like this?
Similarly, complaints about the show being unfaithful to it's source material are 100% warranted. Because ask yourself; why is this show about Mega Man? If the attempt was to introduce the character/franchise to a new, younger audience, then it has failed miserably.
What's the point of "introducing" something as well established as the Mega Man series to a younger generation if almost *nothing* about it even closely resembles the original. Many fans of the franchise aren't upset that the property they love is being changed into something they don't like, they're upset because this is practically a *completely different* story, with completely different characters, with the franchise they love slapped onto it for brand recognition.
But even ignoring all of this the show doesn't hold up on it's own merits in a vacuum.
The show is a visual mess. The lighting and detail isn't the worst I've seen from shows like it, but it certainly isn't good. The character designs are a complete mess, which is especially perplexing since the original designs would have worked far better while also being less work to animate due to their simplicity.
Each episode has almost nothing going on, with the simplest and least exciting conflicts you could possibly think of. The lack of plot also means that episodes will only take place in around 2 or 3 locations each, not that any of them are pleasing to look at anyway.
A majority of the show is just filler that strings together lame joke after lame, predictable joke. I swear at least 50% of the dialogue is just padding and the other 50% are punchlines.
If you want a good show for your kids to watch, there are plenty of infinitely better options out there. If you want a show you can watch as a Mega Man fan, don't bother, it's not even remotely similar to anything else Mega Man related.
If you want to introduce the series to someone or get into it yourself...then just play the games, they haven't gone anywhere and they actually have effort put into them.