Per IEVS, in the U.S. the Mirai sold/leased 82 cars in July, making 790 YTD. The Clarity FCEV sold/leased the same 82. As noted in the Ca. H2 station thread, I believe the Model 3 with the bigger battery plus the SC network (and the failure to expand the H2 fueling network to allow more areas of the state to be reached) will/may already be having a major impact on Mirai/Clarity FCEV sales potential, and Toyota, Honda and any other FCEV manufacturers will have to drop prices and improve performance to compete. At the same time, the rate at which stations open must be increased, fuel prices must drop, and the areas of coverage must be radically expanded, if consumer FCEVs are to have a chance of success in California. Their window of opportunity is rapidly narrowing.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].
The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.