Im asking the same question? Someone to share exerience ? How is temperatures? From specs. RB2011 have Antenna gain 4, and hAP Ac 2 have antenna gain 2.5. I think still Rb2011 will have higher Wirelss coverage.
As @jarda wrote: there's much more to WIFI than just TX power and antenna gain. We are talking about RX power in range between say -40dBm and -90dBm and some people are making fuss because of 1.5dB difference in antenna gain?