https://www.ebay.co.uk/i/182021809482?rt=nc&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=20160908110712&meid=29d0010d4ed2475f99fa0efedad969ed&pid=100677&rk=15&rkt=30&sd=113436533621&itm=182021809482 50% more cpu power, 80% more graphics power, a solid state hard drive, .. £350. https://www.amazon.co.uk/ASUS-Monitor-1920x1080-Frameless-Certified/dp/B00YQKTGR8/ref=sr_1_7?ie=UTF8&qid=1544711078&sr=8-7&keywords=23+ips much better monitor, £125. Both those items i would trust more than lenohope.
You would be better buying seperates if you have the room. The cpu in this is 15 watts, low single thread power (like a laptop) its not really upgradeable, the screen will be VA quality not IPS picture quality, basically these things count on you not caring or having room for much else. You could buy a similar box and better screen for similar money.
Looks like ther is a spare m.2 ssd slot so should be able to.
can you add an SSD
I am in the market for an all in one as opposed to a set up that is separate, unless there are cheaper and better deals!