Summary: It is just a mediocre hardware, IMO. Mostly, the weaknesses are caused by Intel's driver set. I have 300Mbps N router and I've been running the card in mixed mode for almost 2 weeks now. Here are the issues/annoyances I've observed... 1.
Summary: I was hoping to use this card because of its dual band capability. The single band (2.5Ghz) card in my Lenovo E503 uses the same driver as the 6235 and is pin-for-pin compatible. When I inserted the card in the laptop the hardware would not start up.
Summary: ...of the Intel Centrino line, and this particular unit reinforces my disappointment. It was placed in an Intel NUC which has a limited choice in capable WLAN NICs. Couple that with Win8 wifi manager woes and this has not been a smooth ride.
Return policy not what Amazon has me accustomed to.
2 May 2014
Summary: I wanted to return the item - it was not what I needed. As it turned out the return policies are a bit peculiar: "only accept returns provided the item is returned in its original brand new condition, and manufacturer sealed in its shrink wrap and packaging..
Major problems with this adapter still unresolved after 9 months
Mike L, Amazon
10 April 2013
Summary: There is an ongoing problem with dropouts with this adapter - check the support forums on the intel website. If you have one, make sure you turn off power saving mode. Because it is dual band (2.4 GHz and 5.2 GHz) and offers both "G" and "N" modes, it is difficult to tell from the submissions what...
Summary: He probado con varios Linux y ha sido imposible que funcionase (Debian Wheesy y Jessy, Ubuntu 12 y 14). Detecta las redes pero no se conecta aunque el router esté a menos de 1 metro. Lo he tenido que devolver después de estar 2 semanas buscando y probando soluciones en los foros.