Far and away the best ones are the new Sony Titanium ones. They are expensive, but much more comortable and reduce eyestrain and flicker, just as advertised. I've tried them on my friend's set, and the difference from the first and second generation glasses is significant.
Sony seems to be all over the place with 3D performance. Some of the lower end 2011 model are truly poor, but other higher end Sony models (even from 2010) do pretty well. From reviews so far, it seems you chose one of the better ones.