Keep, 706 is a great radio and the leader back n the day for that type rig. I have the Mark I model, (no UHF). It's been a really good rig and I have had zero issues with mine. I know several others who have the Mark II model and they all love them. The only new comparable HF/VHF/UHF rigs on the market right now I would consider would be the Yaesu FT-857.
You'll get no complaints from me.