I've owned an MVT-7100 for a few months. I bought it cheap because it was completely deaf, turned out to be a broken antenna soldering (as I hoped and expected). Within 15 minutes I had the rig working again. But this is one of the weaker points of the 7100, they seem to be suffering from mechanical failures from time to time. Not really surprising considering their age.
The 7100 is an excellent VHF/UHF receiver. It also covers HF down to 530 kHz, but accurately tuning to a CW or SSB transmission is beyond the reach of the rig.
Programming the 1000 channels of the 7100 is quite strait forward. The 7100 does not support alpha tags, so you have to remember / guess what you're listening to. Scanning speed is also quite acceptable, and even a notch better than my more modern Icom IC R-5.
All in all the 7100 can be had for fair prices these days, but you should be weary of the mechanical weaknesses. As a backup receiver it's just perfect!
I have two of this model & still think it is a great radio, the back up capacitors fail but these can be easily replaced, my first one I made a common mistake & didnt check the car power polarity & burnt the side of it beyond repair, I now keep the damaged one for repairs.
Super ontvanger, zeer goed en zeer blij met deze aankoop.