I replaced my O2 sensor with a Bosch over a year ago and all is still well.
It's a very easy replacement job, though the electrical disconnect can be tricky to get at. I think it was snapped onto the frame with a tab...

I would also take a look to make sure ALL your sensor plug-ins are secure on your intake (I think there are only two on the black plastic body). One came loose on me last year and gave me all sorts of fuel codes.