George,
I have looked into this one and many other low cost ADS-B devices. The issue is most of these are European based and only supports traffic as ADS-B is purely used for traffic outside of the US. These do not support Weather. Just be careful when internet shopping for the ADS-B, just make sure you ask or research to confirm the units supports the FIS-B and TIS-B protocol for the US. I hope this helps. The FAA is encouraging more makers of the ADS-B devices so there is no doubt going to be more competition in the future. Have a great weekend.