They trade utility for brute force with hilarious vet 5 system and scale well, they are a very forgiving faction to play, which are hard to beat if they have the upper hand
Agree with your post except for this line. The vet 5 system used to be over performing on primary units such as volks. Now it is more of a detrement since XP values are still significantly higher than those of other factions, but most scaling buffs have been removed. Currently it really depends on the unit whether or not the vet 4 and 5 are effective. Currently vet 5 of the JP4 does hardly anything, but its XP requirements are double that of getting a vet 3 SU85.
I believe they are more forgiving than ostheer, but I think it's regarded every faction is. And I think most factions are pretty difficult to beat when they gain the upper hand.