Muse Dash has entered their 2nd anniversary of their release on Steam and here is my final thoughts for the game:

Muse Dash as of right now, has a ton of songs ranging from BMS to Future bass, including 4 collabs they have done that are in the DLC

The base game makes up for it with some pretty nifty bangers but if you do want more songs, then you have to go and get the DLC unfortunately (Thankfully, the DLC price remains the same as they continuously update their packs there). At the first when the DLC was released, the DLC may look overpriced but over time the amount of packs has make it look like it's worth the price.