Speeds at present (even with a 2Mbps limit in place - been that way for about 75 minutes, and likely to continue for about another hour) are around 4-5x faster than I used to get with Eclipse, and many times faster than with Plusnet and Metronet.
Can't comment about BT, it's been a long time since I had a BT retail DSL product (jumped ship when this BT-Yahoo nonsense started), and not wanting to risk a 12 or 18 month minimum contract, there's no way I'm going back.
With BT's new "unlimited" (yeah, right) ADSLmax offering, I might have been tempted to give them a go for a few months (just to see if the accompanying FUP had any effect on medium users - typically, I use around 6-10GB peak and around 40-60GB off-peak), but no way am I taking a risk with their current insistence on a 12/18 month contract.
So, even though I'm not an uber-user, I'm staying put, because I simply haven't found a faster product at anything like the money Entanet charge (closest I came was ACE/Mistral at around
Ade
Giving UKFSN/Entanet a try
DL Sync 4000kbps
UL Sync 448