I actually have a model that looks exactly the same (GT780DX), but has lower specs so i might be able to point out a few key points:
First, lets get rid of the CONS:
-The screen is too heavy for the plastic covering it, this can cause a lot of problems. In reality, if you dont open and close the lid with both hads carefully each time, you are almost guaranteed to break the union point of the plastic surrounding the screen.
-Loud. The fan is good and quite eficient but its loud. I dont know why they decided to use 1 fan instead of 2 (one for gpu other for CPU), but i guess its for more features.
-Thin plastic covers. Some parts of this laptop feel weak, especially the botton part of it. Ive iopened the laptop around 3 times for mods and thermal paste change and each time i was SURE id braek that cover. It hols dor now thou.
-Keyboard. While the keyboard is definitly above average. However, you need to press quite hard to make sure it registers. This is ok with the keyboard as its quite sturdy (1.5 years in, no issue whatsowever ), but bare in mind you will need strong actuation force to use this keyboard correctly.
-Touchpanel( i dont mean the one used as mice, but the one at top for turn on, etc): The touchpanel is usefull, however it can become unresponsive at times (lucky they aded a Blue ray open button). The worst part is that it feels very fragile and cheap. It will do its job, but since the rest of the laptop is build very well, this feels out of place.
-Trackpanel (the one used as mice): At laeast in my laptop its fairly unaccurate. Its not a problem for me as i would not game with it, but at times it is bothering.
-Um, oh and... yeah, this thing is heavy. If you get the laptop+the charger+some mice+some cds.... you can end up carring around 8-10 KG
.
Now to The PRos:
-The screen is amazingly good (dont expect to use it outdoors, but its quality is some of the best in the market).
-The sound is decent (I am an amateur audiophile and this thing sounds awsome for a laptop, and its totally pasable for regular use).
-The performance and temperatures are great. Granted my verion is not so packed as it runs a i5-2340M//GTX670M, but my temps after changeing thermal paste to arctic silver 5 at 30 C ambient never surpased 70 C at load (thou this was a short test to check if i applied the thermal paste correctly, so it will vary im sure).
-The gimiks are fairly cool. The MSI logo is not too chessy, the beyboard lighting system is feirly nice and usefull, and in general it does not seem that they added this just to justify the price.
-Button to instantly turn off trackpanel. This is just nice.
-Good overall conectivity (many usb) and also a decent webcam.
Now the only thing that could be a deal breaker for me is the fact that this is a machine you need to be very carefull with.
I highly recommend this laptop chasis (MSI actually sold the patent to a few competitores on the chasis, so its very good), and any model using it, but i STRONGLY suggest to anyone that buys it to use a very good carring case.
The laptop dosent lay well in bags. Allow me to explain: Most bags dont carry laptops in horizontal but in vertical. In most cases, the thiner part of the laptop goes down, and the wider up. This will make the pressure of each step you make impact the screen, as the screen gets all the pressure if you put the laptop downwards that way.
In other words, without a carring case that will keep the laptop well safe, sooner or alter the screen will suffer, and also most likely the conectors between the screen and the rest of the laptop.