Moved from Sky FTTC to Aquiss FTTC, so a straight forward one, with no engineer required on-site / at cab.
1. One Touch Switch - was initially thwarted by Sky use of capitals/spaces in my address details.
More of a failure of ofcom implementation of the service than any reflection on Aquiss, and quickly sorted through support ticket.
But perhaps Aquiss could do a little bit more to try and figure out correct formating (assuming they are given the original service provider).
Instead of returning a somewhat bewildering "Switching Failure Notification".
2. Connection details.
a. Would be helpful to send out in advance - I was surprised not to receive any email with connection details before the switchover. Instead, it arrived moments after the service had been switched. But of course, my connection is down at this point, and were it not for my phone's 4g, I might have been in trouble.
b. Incorrect doc? - of course, I wanted to avoid above situation, so I did some homework before the switch, and found some instructions:
https://ebilling.aquiss.net/knowledgeba ... r-settings
But my required config in the end (using a tp-link x50-dsl) was: set provider to BT (which just sets VLAN=101 afaict), and use PPPoE, with the user/pass, which is not at all close to the kb. Maybe out of date?
c. Email of password - the connection email included my account password, in plain text

For a. & c - maybe an SMS would be better.
I was down for about an hour, and beggining to fret, when perhaps it could have been avoided.
Luckily my wife was not working from home today, else she would have been at my throat by 9am

But overall 4/5, and customer service have been super responsive and helpful, with great follow-up.