Easy to install; simple yet powerful control panel interface (can be used by non technical people too); it detects even small errors like latency or packet loss that can slow down your website performance! Nothing at all as such but have been using this product for couple of years now without any issues reported so far ;).
Have deployed in several clients already including large global ones where we could not manage our own infrastructure hence had no other option than use services from third party companies instead. The best part is you get 24/7 support when required which helps us out during night shifts also :) Highly recommend its usage if are looking into high speed & secure internet connectivity solution!