The A2B has direct drive motor, great on flat roads but not good on hills.
The Tonaro is very strong on hills but not as pleasant to ride as the A2B.
Both have problems with sourcing spares.
Looking at their prices, the A2B seems to be correctly priced, the Tonaro is a bit expensive for what it is. For comparison, you can pitch the woosh Big Bear against the A2B and the woosh Bali against the Tonaro.