I have my SOHO WiFi set up using a Dlink G604T with the usual dipole arials and it all works fine, including the printer.
The G604T is permanently on, and any computer can start and be instantly networked and online.
The challenge is to connect an exterior +12dbGain directional antenna to my existing net so I can read a security camera signal from a distant building. This is to be permanently on too, so my preference is to somewhow feed the signal into the G604T router.
The G604T has one only antenna.