The general gameplay is great, way better than the first game that doesn't let you have to do forced grinding in between ranked fights, and has great minigames with it too. This can also be said about the bosses too once you get through the worst parts of the game in Shinobu's stages. However, with what I just said it means that the beginning to mid parts of the game are not good, and that's because it is. Grinding to get the weapons, upgrades, and going through the bosses make it weaker. Not to mention the fact that some of the bosses are not fun to fight against or are way too easy.
The writing is not as solid as the first one, and some moments I questioned the decisions like Shinobu's character, the design around the moral of the story, and others. Suda51's lack of presence and direction in this game really shows how many weak points are present in the writing route, but the jokes in this one are solid (sometimes) that capture No More Heroes's fun, vulgar humor.
Fuck Jasper Batt Jr., though. Not only is he one of the worst final bosses, but the worst design decisions of the whole story. There could've been so many better ways to properly create the feeling of disappointment from your lack of fulfillment to get revenge in this journey of satire.
I'd say it's up to you whether to pick this game up or not, but I did pick it up just so I can move onto playing Travis Strikes Back. Just be warned for the first parts of the game and the last boss then you're good.