I bought one.
The software is rubbish. There is a improved Apple interface written by some guy, no word on a PC version.
I had to put a decent aerial on it to get 20 meters wireless. The factory internal aerial was rubish.
The reciever has to lock onto the transmitters id code, when the transmitter is first powered up. If you turn off the reciever ( bump the plug pack, switch off by mistake ), you need to go out to the transmitter, remove the cover, unplug the batteries for a few seconds, and put it back together so the reciever can lock onto it again. Rubbish.
Tip, run a wire. You can use 4 wire telephone cable between the reciever and transmitter, and that means it no longer needs to lock onto the id code, or needs batteries.
The outside temp sensor is inside the little plastic case, reads high as the sun heats up the plastic. Rubish.
Wind speed only updated every 2 minutes. Rubbish.
It is cheap. Thats good.
Glenn