I have it too (and my name is also RandyS) and have been happy with it, perhaps because I read the reviews of those that went before me. My expectations were that it wouldn't find everything but it is the most competent energy monitor you can buy. I like that it works on all my devices, even an old iPhone 5, it smartly downloaded an old version of the app and I can leave it plugged in and it will display the output of my energy monitor. I can watch the solar build during the day and see when devices come on.
It's true that it won't identify items that rarely come on, or that are always on, but the truth is those aren't that interesting anyway. I wanna see the things that I use all the time and this shows me. It's also true that it has problems with things like Plasma TVs or inverter-based appliances as they change their power use and don't just turn on or off. Sense allows you to use outlet energy monitors to track those, so I plug my fridge into a TPLink HS110 and the power the fridge uses is displayed and recorded by Sense.
I recently purchased another power monitor for my cabin as I couldn't get the power clamps around the busbars in that breaker panel. I went with Emporía Energy's Vue. After trying their clamps I ended up with their Utility communicating product, talks directly to the meter, updates every second. It works OK, for showing that the house is using power or not, but it doesn't really allow me to break down all the usage the way the Sense does. Even if I had a clamp on each circuit it wouldn't show the coffee machine different than the microwave. The Sense does, and I can click on each item it finds and see all the times it was on and how much that cost me. Same with solar production. The Enphase inverters don't seem to wake up until they have a certain amount of sun, but the Sense can see them starting to generate power beginning right at dawn. Between the two I get the best info for what's being generated (Sense) and where (Enphase).
I have yet to get it to recognize the Tesla, but I do most of my charging on 120v as that limits my charge speed to something the solar can cover and still provide free power to the rest of the house. So I put an HS110 on it too to track my usage. I could charge quickly at 48 amps pulling from the grid, but that costs money. As big a battery as my Tesla has in it I rarely need to go further than the car already has battery to cover, and when the sun comes up there is always more battery to charge. I think Sense is looking for the taper as the battery fills to find the Tesla as a device, but I have only charged to 100% ONCE, I prefer to stop at 80% to preserve the battery, so I don't get a taper, WAP!, just shuts off when it hits 80% when charging from 120v.