Is there a specific reason why I never see the Senao/Engenius gear never recommended here ?
There are many questions here that the answer could be the Senao/Engenius equipment. $170 US for an outdoor (supposedly) 400 mW POE 802.11G bridge with an integrated antenna (8 or 16 dBi) is a one-piece solution that doesn't involve buying a NEMA box, or expensive coax, or separate directional antenna.
Is it THAT bad ?