Price wise they are good but when our shipping leave USA there's no way we can track our package...speaking from personal experience,but they refund without any problem in case no delivery...
I had bought xtremeguard for my ipad on 1st March '13 and it was shipped from USA on 3rd March '13. I still havent received it yet. Contacted xtremeguard support, they told to wait for 18 to 32 days. In case if I still dont receive it they they will either refund or re ship.
Seems that lots of members have ordered from xtremeguard, how many days does it generally take to receive the package?