Please let us know how that collar works. I might get it for Zoee. She has a barking issue very similar to yours, only she's not learning it from neighbor dogs. She learned it all by herself.
However, Zoee is so sensitive to things these days. The Bark Off device made her anxious. The vacuum makes her anxious. When she gets anxious she shakes and drools. So I'm not sure how a bark collar would work, but I'd be willing to give it a try.