I love how the devs haven't responded to a single review. When I started playing shuffles were 10 gold. Now they're 15. It took 400 gold to refill lives, now it's 600. Gold is not cheap at all, it's ridiculously expensive for what it is. The cheapest pack won't give you enough to refill your lives. Many levels are impossible without using shuffles or other boosts. It's very chance based because you don't know what tile will be hidden underneath most of the time. Not zen, not very fun.