It's great and they were so good! I paid $20 for 2 2 packs in June 2020 so I only got 4 caps for $20 which is cheaper than anything I could find. They work great and I love that you can use a different outlet for something else. As a side note, if you put it on the bottom exit they will block another exit, but as long as you leave it on the top one you're fine! I haven't had any problems with any of them (I've used 3 of the 4 I bought). I also like that they have a manual on/off button at the top if Alexa is acting stupid, but I've only had to use it a couple of times and I'm sure it's just because my wifi sucks. I was able to turn my old fan into a smart fan and I'm using it on my "dumb" LED strip under my bed to cheaply make it smart! This is by far the most economical way to access smart home devices.