Not that I'm a litmus test, but I've had mine for 2+ months...and all is well with it. Knock on wood. You might want to consider a Squaretrade warranty...?
Picture is really nice, auto-shutoff helpful. It's a pain in the rear w/o the remote, but a quick $20 solved that (for the PS3 BluRay one via Amazon). Audio is also admittedly terrible, but not a deal breaker.
I really like the 3D effect; it's impressive on certain titles. Glasses, however, make everything seem a tad darker...but are very good quality (passive 3D is just not my thing). Would be eager to try out a 3D BluRay on it.
Simulcast is neat, but I'm admittedly a solo gamer locally. I did, however, buy an extra pair of glasses to show off the 3D to the Mrs.
At a risk of stating the obvious: it's small size becomes glaringly noticeable due to the excellent resolution. I have to pull a chair a lot closer to it to play from it.
In short: if you want an inexpensive, extra TV to muck around with in 3D, you really can't go wrong with it @ $300. Even more so when two games I perceive as high quality, extra glasses come with it.
Hope this helps!