Safex is definitly one of the more promessing altcoins out there. After their first wallet launch there still remained questions and problems.
They fixend them and V2 of the wallet Looks quite nice (i expecally like the Feature to have multiple keys.)
The Video also explains why there is always bitcoin connected to safex transactions.
Even if you do Not have safex, you might enjoy it simply as a nice bitcoin wallet.
I think Safex have great future with Chille coin