Just did it four times for me and the gf, go to Experian and Equifax, they are the big 2. Experian do 30 day trial as do Equifax, you then have 30 days to just cancel. Very easy and you can get straight in and print it off.
You dont need to wait for any pins either its straight in with username and password. Can be on within 10 mins from sign-up.
Yes you will see on the file an entry for you actually creating a viewing of it. We did 2 each for a mortgage advisor so he knew which banks to approach.
Dont bother with the £2 one it can take a while to come through.