It’s been covered probably, but there’s only 1 real thing that would make this pedal perfect.

All it needs is a on/off/on switch that goes from triplets/crochets/dotted eighths.
Everything else is manageable. The major gripe from most guitarists is that it doesn’t have a dotted eighth tap mode. triplets for 6/4 timing and it’s perfect.

Icing on the cake would be external tap tempo and expression pedal inputs but in reality one little switch would change the smmh from being a delay that people run in tandem with another with dotted eighths, to a contender against all comers.