Some of the SD 1000 sounds are certainly AT LEAST as good as their Yamaha MoXF or Roland Integra counterparts; I like the trumpets, the church organs and a lot more.
I haven't really integrated the module into my system of instruments yet, but I've started to use the iPad app Set List Maker (with in-app purchase midi functionality) to change the SD 1000 sounds (as I did in the pipe organ video).