So far it's an amazing ship in ranked sprint. The 12 guns make up for the 1.5 sigma even in randoms. The HE chance is decent enough to deal with bow tankers until you close in. This also burns a lot of DC and repair parties so when your secondaries and torps cause dot damage your enemy is toast.
It's less likely to catch fire than the GK as it has better deck armor.
It may not be for everyone, but it's like a Tirpitz on steroids.
Plus for coal and a coupon it's free, aside from your time playing the game. Very glad I picked it up.