Ecoraster - Eco Grid - hot tub pad system

[Tranquil23]

http://purus-northamerica.com/work/ecoraster-ecogrid-the-d-i-y-hot-tub-pad-system/

Has anyone used the Ecoraster - Eco Grid - hot tub pad system for the base of their hot tub?  Looking for feedback about this product.  I am considering doing this instead of concrete patio squares.

Thanks

[Sam]

Looks pretty cool.  Have you looked at the ex-pad?  Seems like it may be a little bit easier.

[Tranquil23]

The electrical company that came to do the quite for the hot tub, does the EcoRaster as well.

I did look at the website for ex-pad. Thanks for sending.
The only problem is I.i don't want to have to level the ground myself...

Are you using the ex-pad?