Once you get used to it, the OM4's meter is just wonderful. I don't consider it "bloated with features" because, except for the metering system, it's pretty straightforward. The OM3 has the same meter, but no automation and a mechanical shutter.
Be sure you get a later 4 or a 4t, early ones ate batteries like M&Ms and were responible in large part for my switch to all-mechanical Nikons.
One of the awesome things with the 4 is the way it shows the current shutter speed in manual mode in the finder. I love that.