I enjoyed it a lot. I hadn't realized beforehand (somehow) that it was supposed to be in the style of John Denver & the Muppets, but I caught on really quickly and thought that it was plain fun.
I can hear the 'off' sound of Robin, but I'm sure it'll be resolved. I thought the Pepe in the dress was a bit...odd...but I'm not his biggest fan. I like the costuming on the Muppets, especially Gonzo's that is a definite call back to Christmas Carol.
Rizzo's was too.
I thought it was awesome that the audience reacted to poor Fozzie messing up, and then getting his lines.
I'm just glad that is such a good showing of the Muppets.
All I have to say in conclusion is:
FIIIVE GOLDEN RIIINGS! (Ba dum dum dum.)