Check the comparative pricing table, I think it's pretty accurate. When I lived in SF, that's what we'd pay for a large load at the laundromat. Same in NYC. That said, the laundromat was 1 block away and the industrial machines are much larger than the typical home machine so there's not much of a value prop for me unless the delivery works really, really well. I tried washio once because I had a $20 promo code and it was over $40 for a smaller load.
Really depends on the size of a "load". At least a dollar per pound is standard. If their "load" is more than 10 pounds of clothes, then it's easily within range.
Their website says a standard 18-pound load.
The average front-loaded laundry machine can hold ~18 lbs. Washio and wash and folds cost around $1.60 a pound, so this is close to $20 cheaper. Still $10 cheaper if you get delivery.