Weβve been using their service over 1 year now with multiple sensors per customer (we are currently testing 50+ active customers right). They have handled all my requests within 24hr even if that meant getting back up at 5am just ask them they will help no matter what time zone etc.. In terms of price...it is pretty cheap but we were already paying $100/mo from another vendor so its not really an issue in our case :) Great product! Highly recommended especially when looking towards scalabilityβ¦