I think SV is brilliant for VFR flight in IMC, and flying DIY instrument approaches.
I'd make sure I flew the route in VMC first though...
The hard thing to accept is that IFR "should" be flown using conventional IFR procedures, and there should be no VFR / IFR halfway house. Yet SV is all about creating a halfway house - merging the two concepts.
That IMHO is the objective way of looking at SV.
Commercially, it will sell planes, and will get criticised by various people in the same way they slag off the BRS chute for causing pilots to undertake risky flights.