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!
How to get insane loot!
Step 1. Tame arthropleura
Step 2. Run cave of the strong (NOTHING will attack you)
Step 3. Tribute and repeat steps for infinite resources
BONUS: use industrial grinder for Insane resources
A fun way to defend your house if you live in a radiation zone is to keep theses things around and enable turret mode on them. They will destroy the hazard armour of anyone who tried to raid you so they will die of radiation poisoning.