I own the 2713HM and my unit appears to be fine. In fact, after calibrating with a Spyder4 Pro, the data shows that it produces 100% of the SRGB space and 82% of the Adobe colour space. I use it for Photoshop and gaming.
My second monitor is my old Dell 2407WFP. The first one I owned died after a year, but Dell provided a 'next day' replacement with a unit that has been working reliably for the last 6 years.
No dead pixels on either unit.
The 2713HM uses an LG IPS panel - a newer version of the one found in the Apple Cinema Display. When investigating monitors I'd recommend checking the technical details on www.tftcentral.co.uk
to find out exactly what you're getting.