I actually kind of like this show, there's no doubt this is a modern "Mr. Roger's Neighborhood". The characters are pretty likable, some of the songs are nice.
One thing that bugs me though, is how repetitive the songs are. I understand that they replay the songs over and over again so kids' will get the lesson and i'm sure it doesn't bother the show's target demographic at all, but it's still really annoying to me.
Also, something i've noticed is that the singing often sounds really robotic lke they use way too much autotune.