Vouch for Kronixx. He is a nasty player, highly skilled and carries the game hard. Expect 20min games when hes boosting! Smooth transaction and very informative. Highly recommend him if you want a fast and high win rate boost.
Vouch for Kronixx! Dude's a fucking beast, he finished my S3-G5 boosting in one day WITHOUT A SINGLE LOSS. I wish I was able to spectate the games because apparently he's a monster on (removed champion name by request). Would recommend this service to anybody and everybody.