Which monster do you like the most in Heroes 5 at level 5?

Jin!
Advantages
1. Good initiative.
2. Ability to fly.
3. Magic.
4. Good attack, damage, and defense.

Disadvantages
1. Low hit points (forgivable for a mage).
2. Low speed (this is strange, considering he can fly).

Question: Why doesn't he appeal to many people?