This is just a replacement for an IR remote that has an app with it.
Sensibo does much more, Because you can set up its triggers based on temperature, which is what a lot of people want for an air conditioner. The atomi can only set up based on time. Sensibo also has its own Geopresence, which atomi does not.
The only integration you could get with it would be by using echo as a “man in the middle“ and I don’t know how many options that would give you.
For this particular device class, I personally prefer a SwitchBot hub mini at $39. In addition to the infrared remote controls, it also has an IFTTT integration which can be quite useful.
No question atomi is cheaper, and if it does everything you need, it’s certainly worth trying. But I think Switchbot will have easier set up and more integration options at still quite a low price.