With this service we will play a set amount of games (depending on your purchase) on your account, regardless of the SR earnings. This service is often used to fix MMR (Elo/SRGains) issues.
Since this service is cheaper from the classic SoloQ Boost, we don't have a win rate guaranteed for SoloQ Games. BUT we usually win 90%-95% of our games below 3500 (Master rank) without problems.
Absolutely yes, we can do it and it comes free of charge! Feel free to ask our boosters to play Symmetra in attack, they will LOVE IT! :)