Hey, Meitzi, you should note this:

If you're asking if Bitcoin is still experimental, then I'd gently respond it'll most likely be until the whole world adopts it. But, saying that the software, the Bitcoin client developed by the Bitcoin Core team, is experimental isn't the same thing.

Look, they both are in an experimental stage, but there's difference between the currency as a social experiment, and the software, as a developing project. They obviously have a connection, since the whole thing relies on the software, but Bitcoin could still be experimental while the software entirely idle and considered “completed” from significant changes.