A:
I have another brand, Netgear WN3500RP Dual-Band WiFi Range Extender which works extremely well inside my large 3-story house, unique feature of this Netgear is that there are 2 separate status lights for 2.4GHz and 5GHz. So if either one of the lights stays solid green, then I know I am getting strong and steady WiFi signals through out my home.
According to Belkin user manual http://cache-www.belkin.com/support/dl/MAN_F9K1106_8820-00923_A00_Dual-Band_WRX.PDF, a blinking amber (or you think it is red) status light refers to bad connection between the extender and your router, so you need to move the extender closer to your router. Looks like your Belkin only has one integrated status light for both 2.4GHz and 5GHz.
Even though Netgear WN3500RP costs $30.00 more, to me, it is a better choice.
By the way, do you have an N router that is capable of dual-band as well?