It's not consistent for sure, like I said, 50% win rate, that's pretty bad cause you can't get streaks going too easily.
But it's really fun and I've won without drawing astral at all. Nourish is your 2nd way to ramp up quickly.
My 2 worst losses happened back-to-back where I needed Master Jouster to win the Joust and he pulls Loot Hoarder. Literally every minion is 5+ except 2 and he pulls the 2 drop. The 2nd time he did it I already had a hoarder in my hand, so even less chance but.. yea. To top it off, enemy minion both times was also a 2-drop.
I definitely would have won both games if he triggered his taunt because I had heals/taunts/clears ready for subsequent turns. Both losses are where I didn't draw Astal and needed the 6 drop to hold off some of the opposing board.
I had a really sweet win against Face Hunter where I used Raven Idol at 1 health and pulled Tree of Life and he had 0 cards left in hand and only 3 damage on board.