BT told me that the maximum I could ever get from my line would be a platry 6Mbs, so when we finally got Hyperoptic to install in the block it was a welcome relief (although took me nearly three years of lobbying the tenant management board and the other residents).
Now, I'm paying around £30/month for 100Mbs synchronous (FTTP) with phone, and regularly get faster than that (around 120Mbs).
Odd though that when I called BT to have the line disconnected and they asked me why, they then stated that they could offer me 'superfast' 50Mb broadband with BTTV thrown in ... although they still couldn't compete on price. Also, when I asked them what had changed recently to enable the uptick from 6Mb max to 50Mb max they told me that there had been no recent engineering work. Go figure. Lying sacks of s**t.