I've played this deck at two more FNMs. I've gone 3-1 at both and played a pretty wide range of decks. simic flash, esper enchantment, some adventure decks, mill, and others. I haven't really used a side board yet. As long as you are drawing extra cards often you can pretty much take down most decks. Games that i lost were from getting stuck on two or three mana. these games i kept an opening hand of two or three mana so im not sure what was going on with my shuffling.
I've also played this deck on MTGA. It pretty much dominates anyone who doesn't make the correct decisions. The only deck i have real problems with is aggro but only when im behind. I really have to get a Priest of Forgotten Gods out to start forcing sacs in order to stop those decks. the mana ramp also helps to drop an early Syr Konrad, the Grim which makes killing my creatures a problem for aggro. Anyway, the deck needs a bit more balance like Murderous Rider and maybe a rankle or two.