@DJ S-TYPE > Unfortunately no, you will not be able to use Rekordbox with any of the DDJ controllers.
Only CDJ and DJM models with the "LINK" feature (CDJ-900, CDJ-2000, DJM-900, DJM-2000) can receive Rekordbox information over "LINK", but all other current CDJ models recognize Rekordbox analyzed files on USB devices. (CDJ-350, CDJ-850).
Yes, the DDJ-T1 effects are in the same layout as on the Traktor software. Check out the top view of the DDJ-T1 and you can see the layout. :)