It's fine.
It has a healing cooldown, but it can heal many units at once in the same timeframe - big plus over Soviet/OST/OKW medics. Plus, it can move.
And getting it (250 Manpower and 10 Fuel) doesn't slow down your teching much than Soviet medics (250 Manpower) or Ost bunker (150 + 60 Muni). IMO, the slight difference in cost is easily balanced out by it being able to heal everything within a radius and it being able to move anywhere on the map.
![Honor icon](/images/replay/honor_icon.png)