I had a 902DM that was a pretty decent radio, but it developed some issues over time. The biggest annoyance was a need to occasionally reseat all of the circuit boards after a thorough cleaning of the contacts. Then, after a realignement, it would be back up to snuff.
Something happened to the VFO on mine. The knob seemed to be eccentric, and over time, it became more so, making it difficult to operate. I ended up using the external VFO most of the time. It was like it had been hit very hard with something, bending the shaft, but to my knowledge, it never was.