I bought the Sense Home Energy Monitor, and after a month I still can't get it to work.
First, the initial monitor Sense failed and had to be replaced. That was two visits by my electrician, first to install the original, then to replace the failed original.
Second, when I try to set up the solar feature (I have solar), it fails every time. A third visit by my electrician established that all of the solar connections were fine, so it seems that Sense is the problem.
I've spent about $500 for three visits by my electrician. Sense help is no help at all. Everything they recommend doesn't work.
I've concluded that this system is a piece of junk. My advice is not to waste your money.
Bottom Line: No, I would not recommend this to a friend