The Panasonic RF2200 also has a lot of issues. I know it's boosted as a terrific radio, but nearly everyone who buys a used one nowadays has to have it fixed -- the weak spots are the bandswitches and other switches. During that period of radio technology having chained slide switches under molex connectors was the going thing. The problem is that the switches break down over time. My Sony ICF5900W won't tune shortwave because of it, and spraying the switches does no good. It's similar technology, produced during the same year.
A better choice would be one of the Sangean PRD models that have few breakable parts, smaller LCD readouts, and good performance. The PR-D4W has a pretty good rep, and it is modestly priced. -- between 60 and 89 dollars at various places. For 5 bucks more you can find PR-D5's online, too.
I agree, the switches can get very dirty and corrode, and will need to be cleaned. I grew up with this technology (slide switches under molex connectors), as it was not a failure or prone to, they were just not the best design that was offered. I have not had one fail on me yet ( actual switch on the board ), but they can become a pain to clean. Buying any vintage radio is going to be a risk, and all of them had issues ( not just the RF-2200 ), but if you can find one in mint ( or near mint ) condition, it might need to be cleaned and aligned which isn't a big deal. I have two RF-2200's ( black & Olive units ) and they both have outstanding performance. When I went searching, I was looking for well taken care of radios, and payed a heavy price ( $300-400 ) for each one. Only one needed to be cleaned professionally. I was able to clean the pots and switches on the second one myself. Nothing has failed, and quite frankly, I don't think anything will for some time.
I also have both Sangean radios you mentioned ( PR-D4W and PR-D5 ) and enjoy those as well. they are outstanding radios and a great value for those who like to DX both AM and FM. I rotate the use of all my radios to keep the battery's electrons moving ( I do not use alkaline battery's ).
Lastly, the GE super radio is a good choice to, while we are on the subject.
The C.C radio 2E has a defect, no question about that. Once this defect with the LCD has been acknowledged and corrected, I will purchase one. I do know the preset buttons on the top are known to fail as well, but this is minor compared to the display repair, which from what I have seen, is very difficult to fix.