Pros Picture quality is excellent
Wonderful remote control
Passive 3d works well enough
Very easy to use, and onscreen menus are well thought out
Cons Slow loading times when switching modes
120 HZ is low for this type of TV
Summary I've had a lot of monitors, and tv's over the past 3 years and returns or sold everyone because they all had issues either it be ghosting, backlight bleeding that is unsatisfactory, blacks look blue or purple, and severe input lag.
I've had the 42LM6200 for a few days now and absolutely enjoy having it. The input lag is unnoticeable, absolutely no ghosting/blur what so ever compared to other lcd based tv's/ monitors I've had and even compared to a TN based gaming monitor. The LK450 I had previously was terrible for being a pc monitor. The text was really bad and seemed like a sharpness issue but whatever sharpness level I tried, it was still there. The 450 had an extremely huge bezel and hated it. This 6200 handles text just like my pc monitor did. Precise, and reds look like the rest of the text. No smudge red text I've seen in previous lg tv's.
The buttons on the tv are touch sensitive and have to be touched more so then say a ps3, xbox, or your phone. I like it like that as if I slide my arm under the tv or something the tv won't change on my or turn off. With the tv on there is no led lights on the tv to distract your viewing. Once it's off there is a low output red light. It won't light up your room so don't be concerned. The stand is mindblowing. You can actually set your items under the tv! There isn't a stand in your way and won't have items in your way. You can slide then under the tv and they won't pop out while the stand will keep them blocked in. I can fit a xbox or ps3 controller under the tv. The bezel is nice. About 3/4 of an inch and plastic but looks like brushed aluminum. It's black and looks nice. Don't have to worry about fingerprints or scratches. The stand however is glossy black and is a fingerprint magnet.
The picture quality is excellent. Netflix off the tv's smart menu is mindblowing beautiful. Was watching walking dead and never realised how nice the picture was before. It's a night and day difference from the monitor I had. American Dad had some serious WHOA and WOW factor to me. I never seen a cartoon so lifelike so to speak. The colors were excellent and the boarders around the characters were precise. By boarders I mean the black outlining of say their eyes from their face, head from their chest and so on if that makes sense. The cartoon looked so nice I'm off to watch a few seasons just so I can be in awe looking at this tv.
If you're looking for a new pc monitor that's not TN based and don't want to pay hundreds of dollars for an IPS that's 27" then I highly reccomend this at 32" for around the same price. I played BF3 on this tv on the PC on high settings and was blown away. I don't use the 3d or care much for it but it's a nice feature. The screen is glossy but not as glossy as say a sony NX/HX series, or high end Samsungs. And not as dull as the Sony EX720. It's about in the middle between those two. I'd say it's in the middle of semi gloss and glossy. If you have any questions please feel free to leave a comment and I'll be happy to reply asap. I'll come back in the future and give my thoughts on 3d when I get a 3d movie sometime in the future.
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Hope this helps.