Now, I have only been in London (as well as UK) for about half a year and can only compare Tesco's service to ISPs in Canada, Germany and Austria. (And of course what I've read about UK providers in terms of price/performance)
Personally, I have never seen internet access being established this quickly and painless. The modem was in front of my door only two days after my order. The go-live date got scheduled for the week after. Everything was plug and play, no technician had to come by. For me, a downright miraculous experience.
Connection speed quickly stabilized after a couple of days of those initial, automatic adjustments that only caused me to lose connection a couple of times.
I get 15 MBit down (estimate was between 12 and 18), 900 KBit up. I have never observed speed drops. Longer disconnects (of maybe half an hour or so) happened maybe 2-3 times in that half a year. Shorter ones as rarely as well.
Now, sometimes, some website are suspiciously slow. And considering their high status, I doubt it's their servers and more likely my service. But that also doesn't happen often enough to at least annoy me.
And considering the price point, it seems like a steal.
I also just went through the termination process, as I'll move again and there were no issues, received replies between 24 and 48 hours.
To me, it was obviously important to not be tied down in a 24 month contract.
So - cheap, flexible and pretty fast and stable means a huge win in my book.
(I rated "services" 5 though because I never used them, so I can't say whether they're awesome too)
	 	 	 		
				    	 	 		      
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