Really the Painting Guardian Sword is just a Curved Sword combined with a Dagger. And for what it is when you consider it that way, It's freaking amazing.
Sure you have to get close to the other player, but it's not all that much closer compared to something like a Falchion, and when you compare it to Daggers, it's perfectly normal. It takes the good of the curved sword class, while only taking one bad from the daggers.
I've always been confused as to why I don't see it more often. It's very very useful and is a great weapon to have at the very least as a side weapon.
I gotta say, I love this weapon, it is just so ungodly amazing. It has so many features and for some reason it is disliked for it's range. In fact, I dare say it may be the best weapon in the whole game.
What are everyone else's thoughts on this outstanding example of a weapon?