If you've only got time to play as one character in Borderlands: The Pre-Sequel, it's obvious who you're going to pick. Unfortunately, that one was taken, so I ended up as Claptrap. Ahaha, etc. Just to recap, this is a last-gen game, definitely NOT Borderlands 3 (it's more 'Borderlands 1.5' in terms of plot), and it's set on the moon.
But anyway, Claptrap is playable! His movement is predictably swift and he has a neat 'skating' feel while on the ground. And he certainly isn't as flimsy as he looks. It is a little odd to see him wielding a gun and chucking grenades, but the spoken dialogue and special 'skills' make it abundantly clear who you're playing as, even with the first-person viewpoint.
His skills are brilliant. One sees Claptrap offering the other players a high-five. When nobody high-fives him, he gets sad, and gets a sadness buff. Then there's the vaulthunter.exe attack, which provides a temporary but substantial 'stat change' that also affects other members of your party. I say 'stat change' in inverted commas, because what I actually mean is ClapTrap goes wrong. Massively, massively wrong. How? Try auto-firing, rapid-fire guns that you literally can't stop shooting until the affect wears off. Or bouncing uncontrollably around the place, reflecting bullets. Sometimes he summons turrets that look like mini versions of him. Oh, and he also turns into a pirate ship, firing 4 cannons while singing the tune of the 1812 overture. I'm not even joking.
Aside from Claptrap details, I learned that Wilhelm will be able to unlock two drones as a skill, named Wolf and Saint. These act as combat and healing buffs respectively. Also that the antigrav, outdoor floatiness work really well, giving you time in the air to let off some shots and plan your landing. Oh, and that shooting an enemy's oxygen visor off while on the surface of the moon may be cruel, but it's also wicked fun...