So...
I finished 2nd on the tournament with a 3-1 score. The one loss was a mistake of mine.
Game 1: Vs WG Heroic
As usual with Heroic decks, he just couldn't handle the swarm of creatures i've created.
Game 2: Vs American Control
This wasn't hard. My deck has simply too many creatures to handle and he couldn't destroy everything. I killed him before he got his sixth land, otherwise he would use mass removal and the outcome wouldn't be so pleasant for me.
Game 3: Vs UB Mill
I was surprised how mill got this far, but I bested him twice quite easily. His removal wasn't sufficient and the milling did not hurt. I've added two Immortal Servitudes to sideboard to return milled creatures onto the battlefield.
Game 4: Vs Naya Blitz
Now, I would win that, but I made two mistakes.
Round 1 I kept a hand with two lands and didn't draw more. I drew Frontline Medic, Xathrid Necromancer, and still no lands. Despite playing 2 mana drops one by one, one creature per turn just wasn't enough to keep up with him. Additionally, his strategy was "assault from above" and he killed me with two Stormbreath Dragons.
Round 2 I would really win that, but I made a huge mistake that costed me the game. I held my own quite easily, Doom Blade on Boros Reckoner and all this stuff. However, when he played Stormbreath Dragon and swung for 4, I drew Ultimate Price next turn and instead of using it, I've played a creature. Next turn, he played another Stormbreath Dragon and killed me, bringing me exactly to 0 life. If I killed his Dragon, he wouldn't kill me and I had another Ultimate Price on top of my library, so the second one would die as well.
However, I am happy with the results.
I do understand that I played mostly against rogue decks, but this deck isn't 100% competitive either. I would never take it to Grand Prix, Pro Tour or other bigger events. It is purely for FNM and it is fun to play. And the most important: It's easy to play.