No, I don't use this. I find it harder to press to keys at once than to spam backspace.

No idont use this, Often it will open my files and i think my computer thinks that i am saving something or downloading, and in recent times, it wuold search in whatever browser you have, ultrasound, so my answer is no.

I didn't use it up until maybe last month, but from my experience I would say it is somewhat worth it. Yes, while spamming backspace seems quick, using the hotkey is much quicker such as the cases where you make several mistakes on one word or if the mistake is near the beginning of the word. It does take some time to get used to because the first instinct is to just spam backspace and it also requires some practice to recognize when it is efficient to use it over tapping backspace a few times. Just a quick note: it does seem to have some odd interactions sometimes when typing on KeyHero. It's hard to explain, but you might notice it.

I use it regularly however if you type out a long text and have to delete it all ctrl +shift + backspace deletes all text

I use it from time to time, especially when I need to press backspace more than 4 times or so. There are situations where it's just quicker to retype the whole word than to start from somewhere in between. That half second matters and can add up. I definitely use it more often in real world applications like during writing reports.

Made a macro of it, On the right alt when you get use to it it AWSOME, also split spacebar makes it even better noticeable improvement :)