Really? That means, it is a used one, right? How many printing hours does it show on the "Runtime stats" menu? Does it have an enclosure or at least a front door? While not strictly necessary it's highly recommended for ABS prints.
From your pictures i would say: it's either (partially) underextrusion, poor layer bonding (because of the fans or too low temperature) or temperature fluctuations.
yes it is used, but based on the stats it wasn't used much at all and I was able to talk the guy down to a measly $200(which was a steal for this machine) so although in the realm of too good to be