I bought this to use Virtual Background in Zoom. I didn't want people to see my messy office in the background. For that purpose, it works well. I wish there were instructions for using a green screen with other applications, like Skype, Hangouts, etc. I tried OBS, but it is too complicated for me to figure out.
Advantages: Creates a quick and easy green screen attached to the back of your chair. Easy to attach. Fairly wide to block most of the view behind your chair.
Disadvantages: I have the square version. Since the screen comes / stores in a small bag, the screen does not stay flat when open. The slight curve in one corner creates a flaw in the virtual background. This flaw wouldn't apply to the ROUND version which is completely flat. I just needed the square for my work.
I bought the Webaround as a quick and easy green screen option for video game streaming to Mixer. It does just what it says it will do. The thing you can't really know is whether it's perfect for your use case until you get it.
I bought the 56" version which is really very large. And just what I wanted. I don't like to feel trapped in a small frame where I can't gesture and move around.
Even though for my personal use case I won't deploy it every day, I'm very glad I have it for an option.
Advantages: If you're not streaming a lot then putting it on and taking it off the chair is no big deal. And IF you watch the YouTube video demonstrating how to close it you won't have any trouble. They've actually told me personally that they are going to re-write their closing instructions so that they're more clear and include the YouTube address of the closing technique so the BIGGEST complaint people have is about to disappear!
As for me, I'm glad I got it. It's going to be a quirky option I use for certain occasions. Because I am only using green screen for entertainment purposes I can do something like stick googly eyes all over it and be surrounded by floating eyeballs that move when I jiggle my chair. Weird things like that are a fun option for me. So even with some of its little issues it's still useful!
Disadvantages: Closing the Webaround is very tricky until you get the hang of it but just watch the demo on YouTube and you'll be golden. Also be VERY careful when you open it! It slaps open and anything in the way, kids, pets, plants, crystal vases, 65" $2000 4K TV sets, your nose...can get a very painful and possibly costly WHACK.
As I said, this is best for people who don't stream a lot. Maybe once a week or so. If you need to leave it on your chair because you stream daily or three times a week you may find it's too cumbersome for 24/7. It turns a computer chair into a throne with a big green back.
The only other thing, and this is pretty common with any green screen that's portable, you'll probably have to crop the image from your webcam to make it so ONLY you and the green screen are visible. And then you'd better not roll around in your chair because the Webaround goes with you and might expose your real room around an edge. A stationary screen won't do that. After you crop, the room will be covered and if you roll out of frame...well that's your silly mistake.