Monster Trainer's Handbook 5e Supplement by Dungeon In A Box

Howdy folks!

I was a Kickstarter backer of the DND 5e supplement called Monster Trainer's Handbook by Dungeon In A Box.

Has anyone else here had an experience running this supplement book? I have ran 8 sessions of this at my table as a supplement to our Pirate-themed DND 5e campaign. I feel as if the smashup of DND and "Pokemon-like" is fantastic. Essentially Monster Trainer is a new class option, kind of like Beast Master from 5e but you can have a whole slew of creatures befriended called Wildkin.

It certainly adds a great layer for what players can do during downtime activities, rp moments, and more.

What are your thoughts?