I was one of like 3 people here who actually wanted Swanson, but I've still been pleasantly surprised.
Mainly, I didn't know he had so much opposite field juice. Dansby's big thing is that despite fairly average power, he gets quite good power production. A big part of that is hitting everything in the air, but I had also assumed the balls he actually did damage on were all pulled. But he's already stung several the opposite way.
The other is I didn't expect a ton of highlight reel plays on defense. I expected more of a "takes care of absolutely everything he should" deal kind of like Nico.