The version 1.1 release is more stable and performs better than the beta-test versions, and the option to import one file at a time to the library as an alternative to pre-scanning all drives on the system is welcome. The transcoding still doesn't perform as well as Plex though, and Plex can also cast all your file types for free from a PC. The main advantage of Dreamstream is that it's simpler to use than Plex.
They still haven't fixed the bug that causes it to crash on startup if there's a Roku device on the network, and it still launches the WSHelper app in the background that stays active permanently, supposedly to check automatically for updates from Wondershare even if updates are disabled. You might want to delete WSHelper from where it's installed in the Common Files folder (usually C:\Program Files\Common Files\Wondershare and C:\Users\youraccount\AppData\Local\Wondershare).
Also note that if you had the old Wondershare Media Center beta test version installed, neither removing it nor updating to Dreamstream removes the old index files under My Documents\Wondershare Media Center.