Make sure your getting cable and not national variant of Virgin Media, and then you will get 100% of your advertised speeds, i've been with them since they were telewest at 1mbps and i've been upgraded all the way up to 152Mbps(which is going up again soon for free). i get my full speeds. as for blocked sites, they block as much as all other providers are mandated to do by law, but these are very easy to circumvent...