I'd personally disagree; IMO the 60% market is really saturated right now (DO60/underglow case, M0110, Capsunlocked 60%, Bluetooth 60% all coming up, the Klippe that just dropped again, and of course the popular mid-tier Chinese options like the Tina 60 and DZ60/5° combo constantly available &c &c). A more conventional version of this keyboard would be cool down the line, though!
For me, the layout makes this board worth the buy. Obviously replacing the left two mods will be polarizing. I won't miss them, as I map Control to Caps and Super to a tap/hold combo with Tab anyway, but it might ruin some people's workflow. But a left nav/macro cluster would be really useful for me, especially for gaming or working. I'm sure there will be enough like-minded people to make this GB a success. Bring on the left nav!