Customer service will not return my emails about my need to return this device. If you purchase it, plan on keeping it and not being able to return it within the 90-day guarantee timeframe.

Very good.

Easy to use. I have not seen any improvement yet. Have been using for 7 weeks. Finally discovered app was not not giving me credit for compliance. Make sure you set up treatment areas correctly under account. I finally changed that and it is now logging correctly. Hopefully I'll see improvement after the next 45 days.