You know why Astrill gets mixed reviews in the internet? Because they stopped their affiliate program and therefore all ranking related websites cannot make a profit, hence they are not pushing them...
VyprVPN looks very good indeed. They developed their own protocol called Chameleon (aka Astrill's StealthVPN) for heavy censored countries (China, UAE etc) and they are making a nice progress. It seems also they are working on similar to Astrill applet, although for DD-WRT fw. I am hoping to try them out soon and perhaps use them as Astrill's backup. IPVanish & Express VPN are also on my "waiting" list.
I believe it is worth to pay few bucks more and get a proper service than hassle with it. That's why I can't recommend Astrill enough, their customer service is very responsive & solutions are innovative. Their desktop app which allows you to exclude or route only particular apps (e.g. browsers) is also second to none. I usually use Astrill's applet on the router and exclude say desktop computer on which I run dedicated app for better VPN performance.