Very happy with PIA. Basically can't tell if its on or off without looking at the icon. Appears to make no difference to downloads via the Sydney server. I haven't been blocked from any sites that I can think of offhand. I did notice flash wasn't working on a couple sites, until I realised that PIA blocks flash by default(its a potential tracking method apparently), so you have to untick that box if you want to use it. I only turn it on when I am downloading linux .iso's really, speeds seem pretty normal to me and it always works seamlessly. It could of course all be a case of the emperors new clothes, and I think PIA are protecting me when in fact they are doing a really bad job at it. I don't know if there are 'good' and 'bad' providers in that respect. I know they don't keep logs, and they don't appear to slow downloads, that's about the only two parameters I have to work with apart from price, and realistically they are all close enough in price for that to be irrelevant.