The interface is good and the gameplay is good like the previous game. That said that is where it stop. Unless you want to play unknown to man song don't even bother. Here's a list of the search I did and the number of song available. For time sake I only included universally known/ Legendary group
John bon Jovi 0
Metallica 0
Iron maiden 0
Pantera 0
aerosmith 0
Rob Zombie 0
System of a down 0
guns and Roses 0
Brian Adam 0
Paramore 0
The offspring 0
The Foo fighter 0
Nirvana 0
Queen (The artist) 0
Green Day 0
Avenged Sevenfold 0
Just stick to the 2014 version and buy the DLC of songs that you actually heard and want a play over paying a subscription to learn how to play a song from Jake in his backyard.