Alright, I'm going to make this brief - here is what you need to know.
-awful menu system - very difficult to navigate
-impossible to change the most basic of settings during a game
-everything apart from the actual gameplay is incredibly visually unappealing
-long loading times - even for basic menus
-beginning of games are confusing are visually unappealing until the camera is focused on the player
-The process of adapting music into a track is far better
-the graphics have taken on a more 3D style
-visual effects are just as exciting as previous game - can be changed with new skins
-can be great fun - the actual gameplay has significantly improved, especially for fast paced songs
Don't get me wrong here - I had great fun actually playing this game but the menus and other things in between really hinder having a fun experience. But if you manage to put on a great song, the gameplay (especially when you go through corkscrews) is hugely fun..
It should be kept in mind that this is an early access game, so I assume various faults, specifically the menus which I found took a lot of the pleasure away from this game, will be fixed in the future. If you're a fan of the first game, this will most likely appeal to you. If you haven't played the first and don't know what to expect, I think it is best to leave this game until it is out of early access.