Having one, here is my experience with it roughly at-level.
The range is exceptionnaly good for the level, it can fire at least at BB2 rangeif not close to BB3. However, since it has only 4 barrels firing per volley, the odds of hitting a target are low, and the damage output per second of in-range battle is low too, even if individually each shell hits fairly hard.
The accuracy is fairly good with good gunners (140 vets EBVE lvl 62) but i suppose it surely wont be as good with lesser gunners, and the reload is fast, i suppose to help compensate for the small amount of shells per volley.
Its main strenght is its very small size. it is big as a large DD and has the DP of a BB and as such it is very hard to hit.
The best way to use it is to use your small size and range to go unnoticed and land shells on BB1-2-3-PBB as you're able to. You can end up with a decent amount of attack (and exp) while being useful to the team a bit.
I do not suggest going after high end BB4-5-6s though, since their accuracy will definately take you out if they decide you are a threath.
globally a PBB is much more useful, specially the sevastopol that is also relatively difficult to hit, the PBB will also hit much more often with its 12 shells.