I can't help thinking of Kasparaitis when watching Romanov play. Romo is relatively undersized at 6'1, but is built solidly like Kaspar was. Both Russian and known for throwing huge hits, wasn't afraid to go up against the other team's guns. He has benefitted from "calming" his game down, he can still crush you if you're stupid and have your head down.
I also think that Romo is a great fit with Dobson for the long term. They both turn 24 this week (1 day apart) and their games are blossoming into their respective upsides and ceilings. Their skillsets are so complementary and they both understand and accept their roles. It's nice to see Romo being a little more offensively involved too, he keeps it simple. On his own, I think Romo is a #2D/#3D at his peak paired with Dobber. I think the 1st rounder to acquire him was well worth it. I do think that if Mintykov or Korchinski were available, Lou may have not traded for Romo.
At least that's what my theory is.