Hi Erdinç,
Let me explain what's happening in 2.0 and you can make your own call on this.
I am switching more and more apps to 2.0 snapshots. It is much lighter and has a number of compelling new features. But there's still lots of active development, so there is a real risk that you will need to fix things on your end as the API evolves. The most active area of API changes is JUnit 5 integration (which also happens to be one of the most useful new features in 2.0). After this stabilizes we are planning to make the first milestone release.
Andrus