I was originally on Daisy with Vivaciti on ADSL. I got good speeds day and night at my location. Then Vivaciti fell out with Daisy, I suspect unpaid bills and swapped my line to Enta via BTW. Speeds were dire, I contacted Enta several times with excuses such as Windows Updates were causing slowdowns.
So then I decided to move to Xilo onto Daisy/TTB and speeds were back to perfect for ADSL2+ and no downtime. I stayed with Xilo a couple of years I think then FTTC became available and Matt said I would have to move to Uno as Xilo weren't doing FTTC.
So I migrated to Uno and FTTC was enabled but sync wasn't as expected. I was getting roughly 45mbps sync where the BT checker and Uno were saying 66mbps expected but my range was 41-80. Further investigations and a friendly Engineer on here and a few pictures showed I had untwisted pair drop wire underground down my driveway. The engineer contacted his triage desk who wanted another more experienced engineer to look at my line. He came and did the sync tests at several points on my line and was getting 66mbps at the top of my drive.
The 2nd engineer arranged for my cable to be replaced by digging up my drive and putting in twisted pair underground copper. TT/Daisy wanted to review this before it went ahead which Matt objected to but eventually it went ahead and my underground feed was replaced.
I was getting 58mbps at the test socket after the replacement and an increase in upstream as well. After DLM enabled G.INP on the DS on my line the sync went up to 66mbps sync. Playing around with modems and selecting a ZyXEL modem and testing various modem leads I now have a sync of 79mbps/19mbps. I can't fault Daisy's throughput as since March when I signed up on their Fibre + package and no slowdowns or downtime and Uno (Matt) has been excellent answering my various questions.
In summary, they have been excellent both Daisy and Uno/Xilo.
www.uno.net.uk & freenetname
Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80/20 Meg Fibre
Current Sync: 79050/19661