So... we picked this (and every character) up for Christmas for our daughter (2) who loves Gabba.  The only issue that we have run into is that this, and all the peruvian style Gabba hats (with the dangle ears & string) are that they are adult sized and tend to run quite large.  This Plex hat fits a little snugly on my head (adult male) with an average sized noggin.  If I pull it down to get a really good fit it feels like I am going to stretch it out.  If I put it on my daughter it's very workable, there is still a little play of course, but this is the best fitting hat for kids in the set (at least the set that we got) after purchasing each hat individually.

I will review each item individually, but in case you're only looking at one of them I will break them down by size (at least our experience with size) here and in each review to try to help.  This list is in order from smallest to largest.  (Plex, Muno, Brobee, Toodee, Foofa)  We also got the DJ Lance Beanie and it's still adult size, but as a beanie it's small enough to still fit relatively well on our daughter without falling off or covering her eyes.

The hat is very warm and is a great sleep hat as it's been exceptionally cold this winter.  Also, fantastic to embarrass older children if you are willing to wear it out in public. :)  They tend to run a bit on the expensive side, but if your child loves the characters as much as mine... buying a cheap hat to keep warm isn't what you are going for to begin with.