This is a copy of a post I made to Sky forums :
--start
Someone asked me to post how I got on with my ADSL->VDSL ("fibre") self-install move so here we go :
6/12/13 - ordered the 80/20 service via phone;
10/12/13 - letter arrived with install date of 19/12/13;
12/12/13 - router arrived;
19/12/13 - first blip offline at 13:50, line went dead at 1400, line still dead at 1415 so I went down to the cabinet to chat to the Openreach guy. I'm the first one on the cabinet and he had to go back and forth to exchange checking just to be sure he'd done it right as its the first one he's done where he can't test using the JDSU from the premises. Nice guy and I've seen where he's put the pair (top right with a lot of space to the side) so looks good for minimising xtalk in the PCP. Poor sod lives where I used to, no FTTC and the lines are rubbish.
Went back home and line was sync'd at 80/15 which didn't look good. Speed looked awful (75Mbps d/s, 4Mbps u/s) so I disconnected MER and rebooted the router.
Stats after reboot look better :
D/s rate 79987
U/s rate 20000
D/s atten 14.7dB
U/s atten 0.0dB
D/s margin 19.7dB
U/s margin 21.21dB (looks like a dodgy value to me)
UK speedtests give 75Mbps+ downstream and 18.5-19Mbps upstream with latencies varying from 9 to 16ms.
Only worry really was some call from Sky that the callblocker rejected (shouldn't have, you guys have pressed the right button to get through before) - was wondering if that was a "your order is delayed".
--end
So for anyone worrying about Sky being useless, then they can actually do things right. I think the key is not to phone up asking about dates, the ones in the letters are always correct. If you phone up then you run the risk of someone messing things up, then (AFAICT) everyone plays "pass the parcel" with the problem.
The SR102 router did require a reboot however after being connected on ADSL and then moved to VDSL to get a normal upstream sync.
First on the cab, things can only get worse from here - "nice" thing about these (rubbish) Sky routers is you can't get near the extended linestats in any reasonable way so I just don't bother monitoring it now
If I have problems then I'll deal with it then.