Powerweax Dual band radio

I stopped by Ham Radio Outlet and asked them for radio suggestion.

They recommended a Powerweax DB750x Dual Band UHF & VHF radio. They said that way anybody that uses a VHF or UHF radio I would be able to communicate with. Best of both worlds he said.

He also recommended CA 2x 45R nmo antenna. He said 6.2 DB gain on UHF and 3.8db gain on VHF.

He said that antenna would blow away any no ground plane antenna.

Anybody use this setup or know anything?