I have a similar model of Asus (ET2400INT). It has been a very good PC for me. It is generally a quiet machine that performs well enough, though I've never really tried any serious gaming on it. You will probably benefit from removing some of the Asus preinstalled crap. Some of them (the updater in particular) are guilty of falling off the trolly and stealing all your memory and processor.
The hardware is basically a laptop, so don't expect to be able to do much modification to it. I still have no idea where the hard drive is hiding, though I have upgraded the memory in mine.
The touchscreen is a gimmick that has very little actual use. It is only able to detect two touches at a time. Otherwise, the screen is quite bright and looks good.
The keyboard and mouse included with mine were toys. Mine were wired, though, and this one includes wireless ones. The built-in speakers suck, too. You might need a 2.1 set of speakers.
Lastly, on my model at least, you have to drop some extra money if you want to attach this to a VESA screen mount.