I have been with Zen since 2008 so have by now some experience of the service. Having had dreadful speeds of between 100 and 500 kbps and severe traffic shaping at peak periods when I was with Virgin prior to joining Zen, broadband life has improved enormously with this ISP. Zen provides me with a steady download speed of 4400 kbps, despite my house being in rural Scotland. What is so important is that Zen has no traffic shaping. Moreover, you never have to wait long to reach their customer service, which I have had to call when I had problems with a router (not provided by them). They soon sorted that out. I pay about £18 a month for this superb service, which, incidentally, carries with it only a month's contractual bind. I call that a bargain.