I remember the Acer having lots of crosstalk issues in 3D, but I don't know about its 2D performance.
I've only tried 3D for like 30-45 minutes. Never had any issues. Couldn't care less about the 3D performance. Try it out. I put my seal of approval on it. I'd get rid of all of my BenQ XL2420T/TX and replace them with Acer GD235HZbid's if I could do it easily.