As the owner of two side by side 7300's which I operate both at full 100 watt power simultaneously day in and day out, as long as you have some antenna separation and have brains enough to turn down the RF gain a bit, I will have you know they do not turn into "flaming balls of crap". In fact they play very nicely with each other.
I almost didn't buy my first 7300 due to complaints of the dreaded Overload light coming on in the presence of strong signals. But I went ahead and discovered that only Morons ran the preamps and had overload problem. YES MORONS. Anyone that is suffering with their 7300 doesn't have a clue how to operate the radio. I am very pleased with the performance of these radios, especially for the money they cost. Are there better radios out there?. Yes, but price/performance ratio must be considered. Would I love to have a 7610, yes I would. Who wouldn't want some extra bit of performance? Does the new Yaesu deliver? We don't really know yet.

Wait, what? You are surprised?
Don't worry, there is an endless supply of "Moron" and "Stupid". (Some of it hangs out here too...)
[Editor's note: If I could just figure out how to harvest "Stupid", I would have more money
than Bill Gates ]
I also have an Icom 7300, have used it in Field Day environments, and had no trouble.
You are simply noticing a true fact about the general public;
- Only about 5% think.
- Another 15% would like to think that they think.
- The rest would rather be dead than think.
- Better than 75% have never opened the user manual.
- Half of all hams could not explain verbally when to use pre-amps or RF gain,
and how that affects the input to an SDR's ADC chip.
The sad truth is that most of the public has been rendered into "Appliance Operators" in
the 100 years since most of our economy left the farm, and likely can't even change
their own car tire if needed.
But alas, DON'T COMPLAIN. Those fools who know nothing and get tired of the OVF light
will sell you that amazing, high performing Icom 7300 for a super discount since they
"
think" (s.i.c.) that it is no good. :-) :-)
Cheers,
Neal