Been looking around at VPN, purchased PureVPN yesterday for $2.50 a month, today i get a $0.99 targeted ad while browsing online.
No use to me (though i am considering getting my money back on yesterdays purchase and signing up for this one. But thought i'd share for others who might need it.
Just speaking from my personal experience with them, the speeds and availability of VPNs was really spotty - I'd either be unable to connect for some reason, or it'd slow my speeds to a crawl.
They also claim to not keep any logs - this isn't true, as their logs were used in an FBI case a year or so ago.
Overall was very unimpressed with their product (I was paying a lot more than $.99 at the time) so I'd say it's probably best to look elsewhere.