I feel like this game demanded more effort to be done than recent previous titles, besides that, there's the server expenses, thus explaining the higher price. Unfortunately, the game is haunted by bad design choices and ZUN overall don't knowing what he's doing. He was so focused and providing a diverse gameplay and creating a competitive game that he forgot to put effort in making the game actually work.
Story mode is dumb, as others have stated here, the split-screen is pointless if it's not an actual 1v1 battle, you just defeat the bosses IN YOUR SCREEN and you're good to go.
Vs Mode is fine, is by far the one I'm playing the most, the CPU is pretty fun to play against, but it lacks very basic features like the option to choose the scenario and an Arcade Mode since story mode is a fake 1v1.
I could say that the netplay makes the buy worth it if it at least worked, I couldn't play a single online match by now, most of the time it just fails, and when it doesn't fail, the FPS is always between 10 - 15, maybe there's not many people in my region that play the game, but damn, I don't think ZUN should ever touch a netcode again, at least not until he actually put the time to learn how to do it, he clearly didn't have a single clue of what he was doing. The worst part of it all is that there's no option for self-hosting, I'm hoping that ZUN or even the community will add this in a patch eventually, if there's never self-hosting I'm sure online will be unplayable very soon, since I don't think ZUN will keep paying the servers for more than a few years.
Having said it all, yes, the game is bad, it's unfinished and broken, probably the worst mainline until now, BUT I will say that, besides all that, I'm still having fun, enough to already have put a few dozens of hours in it.
But now, taking gameplay aside, I liked almost everything else in the game, the new characters, music, and I could be wrong, but I feel like ZUN is finally trying to create an ongoing plot for the series, instead of various separate stories for each game, not only the game makes references to past incidents, but also a lot of the endings are kinda of cliffhangers. If ZUN is really trying to write a bigger plot that will last for games to come, I'm totally for it.