A referb from Cisco will meet there standards, and a $179 router for $95 is a deal. I have an E4200 I paid $100 for (marked down since it was a return), and I reset to factory, installed the latest firmware, and configured.
Being a dual-band supporting multiple SSID's and MIMO it has definitely helped with all my wireless device connectivity (average about 10 devices connected at any point). It has also proved to be a stable unit, as it has been problem free for about 3 months now. Previous Linksys I have had needed reseting every couple of weeks on average.