It's good to have some healthy skepticism, but everything I've seen has felt very legit and pragmatic. It's funny-sad that a lot of people feel THIS is a nostalgia cash-in when Jack Tramiel was one of the least technology-driven, emotive figures in the 8-bit era. I'm OK if they do what it takes to keep the spirit of the Commodore community alive.
Looks like they are using (are going to use?) her FPGA re-implementation.
Jeri Ellsworth as Technical Advisor is also a solid member of the C64 community.