I haven't been using the toner long enough to judge how effective it is. Tonight is the first time I'm trying it on my entire face. I have decided I don't understand why it has a spray nozzle top though. Spraying on directly on my face seems like a bad idea, and spraying it directly on a cotton pad seems wasteful. I think I'm going to either look for a different bottle to put it in, or at the least detach the tube and put it directly on the pad from the bottle.
The good news is the low ph doesn't seem to irritate my face, and I love not having to wait before putting on my acids at night.