The best review of Kingdom Warpath is probably a comparison to the last Deluxe Class toy they made of him, back in 2011. That decade ago, Transformers was still doing "updates" of characters rather than trying to recreate what they looked like in media like they do today. And 2011 Generations Warpath was.... hardcore? Like, they tried to make him look cool, but in the same way that Azrael Batman looks cooler than regular Batman. He was the gritty 90s update-with-pouches to Warpath, while Kingdom Warpath is regular ol' Bruce Wayne.
So, yeah, Kingdom Warpath isn't a Warpath that's trying to look kewl? He's adorable. And, to be frank, that is an important aspect of Warpath. Sure, he transforms into a tank, but he's a friendly guy with a childish speech quirk of shouting onomatopoeia. He shouldn't look like he's here for a new #1 and a few months of "THINGS WILL NEVER BE THE SAME" shock value before they bring back Classic Warpath with restored issue numbering.
The War for Cybertron Trilogy toys (Stege, Earthrise, and now Kingdom) try to make toys in scale with each other in robot mode, so Kingdom Warpath is a little shorter than most Deluxes. He's not nearly as short as Cliffjumper/Bumblebee/Hubcap/BugBite, but he's a bit shorter than Sideswipe and the other Autobot cars. He's a Mini-Vehicle, but he's a tank so he's not THAT mini of a vehicle.
His legs are a mass of layers of plastic that transforms in a series of flips in order to get him from Tank Front to Cartoon Legs, and it feels tedious at first but has an easy learning curve. Transforming him from the waist up is pretty easy. There's a chunk of the underside of the tank that pops off to form a shield. You can't really see this chunk in vehicle mode, as it forms, again, the underside of the tank. But it does help hold the front of the tank together (two tabs on the shield grip the two legs together), so it's still necessary and you can't just throw it away because you hate vehicle chunks becoming accessories.
His forearms are offwhite plastic painted red, and the red paint doesn't quite reach the corners of the arms, and so it's pretty obvious they're painted from a glance. Guess they couldn't fit the forearms on any of the tooling that housed red plastic parts.
The tank mode does basically everything you'd want it to. It looks like an Earth tank, the turret rotates, and the barrel raises.
Leave the treads on his forearms unfolded if you want a more cartoon/comic-accurate look.
Anyway, he's adorable.