different packages

[#1]

Ok im on a old premier accoutn at like £21.99 a month. with 20gb a month usage for peak hours which is between 4pm and midnight,
ive kept this as i like the 16hrs of offpeak time.
put recently my usage has increased a bit And I wanted to find out
Looking at the pro account there isn't any limits on types of usage just a 15gb a month usage time... Is this 15gb 24hrs a day  or is there a peak hours on the pro account? and if so are they 8am to midnight = peak or something else?

[#2]

yep usgae time is 8am to midnight on pro, all usage between midnight an 8am is free and dosent count towards your 15gb on pro. same for the new value package as well

[#3]

I am on unlimited, I find it meats my needs 
There IS traffic shaping but no limit, for £19.95 or less if you are on a M3 exchange, it means full on for 12 hours then a varying speed limit but I still get iplayer downloads at full speed {most of the time}