I had several really, and mildly disappointing HF radios over the years.
I biught a Realistic DX-302A at a hamfest. it had several dead 1 MHZ bands that the demo conveniently passed over. The creep that sold it to me refused to give me my money back. It turned out that he had tried to do a mod on it, and cooked a couple of plastic caps. Cost me about $60 to fix it, and then it was just a bad sounding, drify, but good looking receiver.
Yaesu FRG-8800, my first "good" and new receiver. Bad filters and it had a habit of locking up if you touched it in the winter without discharging yourself first. Too coarse tuning steps, and rubber tire on tuning knob rotted in months.
Icom IC-735. Not a bad radio when it worked. Amazing number of bad solder joints in it. I got very good at taking it apart, retouching any bad looking joints, and testing while it was still apart. When it began blowing PS fuses when it got keyed up, I was done and traded it in for a Kenwood TS-450sat. I really liked that one.
Winners were JRC 515 and 525, Kenwood R-1000, TS-450SAT, and TS-850SAT. RS SX-190, better looking than it worked, but not bad.