Seller said its about 1.5 yo and has had no problem with it assuming after i test it everything is fine and no dead pixel or issues is it a good deal?il use as a secondary monitor i have hanns-g 28" (HF289H)but needed a 2nd monitor when i do my pt's chart, reason i picked dell's ultrasharp is the viewing angle as i'm gonna have this in portrait mode and do some photo editing from time to time.. so you think its a good deal?