Hello, Never used one but looking at it, the biggest benefit is height. The antenna itself is not that great in terms of boosting the signal. Height is the BIGGEST factor in getting signals unless you are trying to get under the tress.
The light box they have is nice so you can park in the best place since moving the antenna a few inches in any direction can make a BIG difference.
Antenna wise, a dish antenna is best but any antenna should give you the gain in DB a straight little antenna like that provides just look in the specifications. Every 3 DB is double the strength. That antenna looks like 3-7 DB range, not so great. You might do just as good with a WiFi box from the store since you can move it around easy and put it by the window where the WiFi is coming from.
The best would be a roof mount with the power box to show the signal strength BUT a directional antenna to point at the WiFi source AND an omni antenna to rebroadcast it around your RV.
I use a cell phone with an external antenna then run that into a regular WiFi box so I can walk around with the other laptop. If WiFi is free then I try to get my WFi box to receive that signal. NOTE: I use an old laptop as the cell connection point since the cell phone needs an USB connection.
People have gotten WiFi to go over a hundred miles without going through things like trees BUT they use directional antennas.
Levi
