Should you buy a Roomba i7+ in 2021?

This is a thorough review, test and comparison (to other models) of the iRobot Roomba i7+ to help you answer the question...should you buy this robot in 2021?

Clarification: When I say "it" is the only robot with a sensor that tells it when its dustbin is full, or "it has the best auto-empty docking station on the market," I am not talking about specifically about the i7, but the whole "new" Roomba lineup (i3, i6, i7, s9 and whatever other Roombas have that dust bin full sensor).

Also, I was wrong about the i6, i7 and i8. Thank you to Smurdle450 who pointed it out in the comments...they are all identical (other than color as I mentioned) except that the Costco exclusive i8 has a slightly larger battery, 2210mAh to the i7's 1800mAh. Apparently, you cannot buy this larger battery, you can only get it by sending your robot in for service, at least that we could find...if you know of a way to buy the battery directly, please let me know in the comments. But if you got your hands on the battery, you could install it in the i7. Not that it would make much of a practical difference, but it would be a fun project to make a video about.
Roomba Mapping Tips and Tricks Video: https://www.youtube.com/watch?v=5n97MaviH9o

Your Roomba is Scratching Your Floors: https://www.youtube.com/watch?v=eNctk-ANQhM

Видео Should you buy a Roomba i7+ in 2021? канала Mr. Roombato