I'm considering a few passive 3d monitors. Most use something call TriDef, anyone have any experience with this?

Looking basically at these 3

http://www.bestbuy.com/site/LG+-+23%...&skuId=2525405
http://www.amazon.com/gp/product/B00...pf_rd_i=507846
http://www.amazon.com/gp/product/B00...pf_rd_i=507846

any help would be appreciated