As Isida is the only dual purpose turret in Tanki X, it is incredibly useful in team battles. After all, it is the only way for a damaged tank to get some repairs aside from picking up a repair crate... if you're lucky enough to grab one, that is. To encourage players to actually repair their allies, the game awards plenty of experience points to Isida players who do so.
It is also the only tank that can repair itself while damaging enemies. Isida is well suited for different types of hulls depending on your playstyle - whether you'd like to sneak up to your enemies to damage them (mid hull) or to move around quickly from ally to ally to repair their tanks (light hull).
The only major downside of this turret is its very short firing range. The gun will also need to be recharged in between attacks/ repairs, making it useful to have a barrier nearby that you can easily use as shelter.