Duca d'Aosta boasts the ability to use Defensive Fire and Hydroacoustic Search at the same time. It's highly recommended that a premium version of her Damage Control Party is equipped, with the other consumables being upgraded to premiums as well as the player can afford.
Premium Camouflage: Tier 6+ Standard. This provides 50% bonus experience gains, 3% reduction in surface detection and 4% reduction in enemy accuracy.
These core skills will warn you when you're being shot at, increase your rate of fire as you take damage, improve the fire chance of your HE shells and reduce your surface and aerial detection ranges. From this point, you can choose to specialize your commander as you see fit. Here are some possible skill combinations to consider.
The former will cut her torpedo range down to 9.6km but it will increase their speed to 56 knots making them a lot more useful against targets closer in. This will also give your quarry almost no chance to dodge them, reducing their reaction time below 7 seconds. Torpedo Armament Expertise will accelerate her reload from 71s down to 63.9s. This will stack with Adrenaline Rush. Both these skills are excellent investments for this ship.
With all the changes added in 0.6.3.1, Duca d'Aosta has moved from a challenging ship to play to a very comfortable one. The bar has been lowered significantly with a combination of quality of life buffs and outright performance buffs. She won't out turn her turrets. Her torpedoes are easy to use and there's no debate on which consumables to mount.
For the expert player, Duca moves up from a cruiser that fights you for every scrap of performance to one that arms you with enough tools and tricks to make you a real threat to anything you might face. It's only her fragility and her lack of show-stopping weapons that keeps her from being more influential.
I had hoped for some subtle buffs. Well, I got those and more. In her current state, Duca d'Aosta is ready for prime time. If they released her as she is, she'd sell like hot cakes and with good reason: A lot of assessments have come out labeling her as being a little too powerful in her current iteration -- that Wargaming swung the pendulum a little too far when they improved Duca d'Aosta.
Yes. The changes Duca d'Aosta received makes it far more easier to play aggressively solo. This allows her to sneak on caps more (which is a huge boost to experience and credit gains) and her improved gun handling and torpedo range will facilitate doing damage. I was easily able to exceed 1,500 base experience on winning matches.
Her long range torpedoes and quick speed will ensure that Duca d'Aosta has a place in competitive matches. To be clear, she's not the ideal candidate for competitive play (it's going to be hard to nudge out Leander and Graf Spee), but she can definitely hold her own.
Good news: I like her more than Krasny Krym. Truth be told, I did enjoy my time with this updated version of Duca d'Aosta. Her speed is wonderful and that's really what I like best about her. Her weapon systems aren't scoring any points with me.