Since we travel alone (Just wife and me) a CB fits our bill just fine.
Advantages far outweigh the disadvantages. As a matter of fact I know of no disadvantages.
1. Buy a good Brand with a built in SWR meter and seven weather channels.
2. Buy a good antenna. The built in SWR meter will allow you to adjust the antenna for maximum Transmission/Receiving.
You won't need any special help to set it up if you are handy with tools. May have to drill one hole in firewall for the front (Hood) antenna wire/coax cable.
I talk to truckers only to find out about traffic/road conditions as needed. At one time Campers monitored channel 15 but I don't hear them there much.
We use ours mostly for the weather channels, driving or parked in a CG.
When all other low watt walkie talkies and cell phones fail you can usually find help with a CB.
RadioAntenna