I visited ModelArt today and saw this little truck. Its a hobby grade 1/18th scale truck for 6.5k. The radio felt good to use and the truck was hobby grade enough. The parts looked delicate. I am not aware of how durable it is. ModelArt guys say they will stock spares for it soon. It comes as RTR - everything except batteries(4) for the TX.
If modelArt stocks spares this truck would be an awesome beginner vehicle for kids, or for indoor use.

The description online said it has a single rx/esc/servo unit.

It is also available at RCskyhobby :
http://www.rcskyhobby.com/products.php?prd_id=887&main_page=products (ftp://http://www.rcskyhobby.com/products.php?prd_id=887&main_page=products)

It seems quite rugged - contrary to what i mentioned earlier
The brushless version seems to have a separate RX unit.