The best thing about this service was that it's free, they give you great support (live chat) as well! I had no issues with gimmeproxy api or anything else for what i have used so far - really nothing at all to complain of here :) This has helped me get around some annoying things in my daily work routine like VPN problems etc which can be very frustrating when working remotely from home :).
Also being able to use their mobile app too helps keep track more easily without logging into your computer each time!