i would never call the Champion open-framed generators POS. Champion has a very good product and provides outstanding customer support. if i needed that type of generator, i'd pick Champion in a heartbeat.
BUT i do think they aren't appropriate for a campground. i was going to buy the Champion 3500/4000 model until i heard one running and then heard a Honda 2000 running.
there's no comparison since the Champion, not being an inverter-type, runs full blast all the time. and since my Honda is usually recharging the batteries, it runs at 54db while the Champion would be at 65db, which is way much louder.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC