MOST
+ Decent price for such equipment
+ Easy installation (coupling station & wireless module with Tor ring poses no particular problem)
+ Compatibility DomoticZ and especially 433Mhz (RFXCOM 433)
+ Remote Monitoring consumption (if equipped home automation solution)
+ Compatible HP / HC
+ Nice finish and small size (up to around without bp)
LEAST
[...]
Although less comprehensive than my ex CurrentCost Envir-level functions of display module, product quality allow DIYers to integrate with home automation tool and thus follow its consumption in real time, even from outside.
You will therefore access to curves / stats consumption and also help with the LCD module that you place in a living room for example, whether you eventually forget to turn off electricity consumers items!