I still have the 'cord that was my first real camera (I had a 110 p&s as a little kid), and it still measures up. I shoot the 'flex more, but every so often there are subjects or lighting conditions that are just *right* for that lens, where a Planar would be too clinical. In some respects I actually like its "user interface" better than the Rolleiflex---levers for the shutter controls, instead of the fiddly little push-to-unlock dials, for instance.
All the meters before the FX/GX are selenium, right? I'd be nervous about trusting a selenium meter of that age; I have a couple that work, but they're the exceptions by all accounts.