Highly recommend his services. Several things stand out:
First and foremost, you get a legit Diamond smurf who can carry. And that's what you want. I've tried other duo queue boosting services and quite frankly, I'm not sure if those boosters were better than the Gold elo players.
Second, jacky is very responsive on Skype. I can't say the same for others. Some reply back promptly, but there are others who have yet to respond back or take forever to reply.