I like it more than Dominion. There are a couple reasons why:
1. The deck scaling is more fun. In Dominion, you can't really have exponential growth be viable, because it's no longer fun for other players. (This is why engines take forever to build). However, in StS, you need a scaling deck by the end.
2. Adaptation. In Dominion, your deck needs to do one thing: get victory points. However, you need to fight wildly different enemies in StS, and your deck needs to be adaptable. (You also need to adapt how you play each hand based on what your enemies are going to do)