advantages:

1. skilled climber

2. cool shooter (the thing that it shoot can blind the victim and the victim won't flee)

3. can increase victim's torpority

4. the rider can use their weapon or stuffs while riding it

5. Have stealth ability (If you tame it from it's home (the cave))

6. Have Turret mode (cant move while targeting it's target, and shoot the target)

7. Prickly Skin (if someone attack it, the attacker will get some damage too, because of its prickly skin)

Disadvantages:

1. Low stamina

2. slow

3. Low weight (Example lvl 32 = 104 weight)

4. the rider can be easily dismounted by the dismounter(mostly raptors(they spawn almost everywhere)

Note:

Great for cave exploring, base protector, taming other creatures. Also Great for destroying bases.

But the saddle need 25 Obsidians and Obsidian can be quite hard to gather.