Just a straw survey, if you will, which I think might yield some interesting revelations considering alpha might be quite the overly conservative designation at this time.
It's not. There are several features in 10.0 which are just not there yet. GTID is continuously improved, XtraDB is missing from 10.0 still and there's probably lots of other new stuff that needs more time. There's nothing wrong with trying it as it already comes with a lot of nice things, but keep in mind that not everything is working fine, which is why it's considered alpha.