Do people find the product valuable? Does it address their needs? Does it fit into their lives and work? Does the experience make them care?
Can it be built? How much will it cost? How long will it take? How lean can it go?
What amount of change will it drive? What impact will it create? How it will affect desired outcomes? Is it meaningfully different from the competition?
Does it support organizational goals? Is it commercially viable and financially sustainable? Is it extensible beyond this iteration?