I resurrected a pedal once by creating a hole in the plastics end cap with a drill and a hot needle. I used a pen oiler to squirt oil into the pedal on a regular basis. Eventually it was good as new. You do not want anything especially metal falling inside the pedal. This is a trick mentioned in Doug forester's book.
2000 Montague CX, I do not recommend it, but still ride it.
Strida 3, I recommend it for rides < 10mi wo steep hills.
2006 Rowbike 720 Sport, I recommend it as an exercise bike.
1996 Birdy, Recommend.
Wieleder CARiBIKE (folding), decent frame.