Spotify on your iphone

[#1]

https://www.spotify.com/en/mobile/overview/
has any one upgraded there spotify account to preminum to enable spotify on your iphone yet?
if so whats the quality like ect?

[#2]

It's pretty good

[#3]

i wont be upgrading my account to preminum untill abour has got there act togther as i wont be a happy paying for the increased bit rate on the pc  for it to be rate limited, nice iphone app or not throwin in to the bargin