Agree with Outrager. I'm reminded of a story (urban legend?) about a marketing study involving bread. A grocery store offered 2 deals: buy one loaf of bread for .99, get one free and another deal of 2 loaves for .95. The BOGO offer had significantly more sales.
I like PIA, but a lot of sites are not blocking their IPs because people are spamming on their network. At times even Google identifies your IP as a possible spammer. I'd go for a smaller service like AirVPN or Proxy.sh, because PIA is too popular now to be useful.