Just remember you almost can’t carry anything on these guys so better use them in a different way. ( also if your on scorched earth, go to the dunes close to the green obelisk and you’re gonna find some of these fellas).
Not exactly the best combat mount, slow, stamina isn't the best, a little squishy. But a few high levels of these on base defence are pretty good. Put a few in the inner parts of your base (along with the spiders to slow them down) and the will have your enemies armour being melted in seconds!