Good quality model for this size TV. I couldn't find many higher end TVs at 43 inches, which seems to be considered a small size these days.
This price is very good compared to other stores at the moment. Cheapest historical price I could find is $839 box damaged from Sony.
I have the KD-43X8000D, so several models older than this, and I have been using it as a desktop monitor for a few years. Great for casual gaming and entertainment (watching TV shows & movies). If this is a VA Panel like the older model, I highly recommend it as a desktop monitor, even the input latency is low enough for casual gaming. Because the blacks on it are much better than the IPS Panels in this price-range & size (shame there isn't a 43" OLED, as I would jump on it immediately). If it's an IPS panel, hey you get great viewing angles, but really if you're using it as a monitor, it's going to be in front of you directly, so colour degradation based on sharper angles isn't really an issue, and you'd prefer the darker blacks of the VA Panel. Which was the main reason I went with the 43" over the 49" model back in the day, as the 43" was a VA Panel, and the 49" was an IPS panel.