One way truck rental

My husband to me his brother has to move from Denver to Los Angeles in a couple of weeks. He found a website called upack.com will be a great option for him. They can provide not only a one way truck rental, but also a driver to get the packed truck to California for my brother-in-law. This is a much more inexpensive option compared to having a mover pack the truck, drive it to California, then unpack the truck.