It looks really interesting but I bet it costs $6-700. I have a flipper zero that I never really found a use case for.
I thought that myself, and I've looked at the F0 a lot and came to the same conclusion.
What do I use it for? I already have a door opener dongle, and I have no interest in reproducing access cards.
I could never even get the access\badge reader thing to work. My work uses some kind of rolling cypher so while I could clone my badge it would never work.
Most of the fun stuff an F0 can do, the HackRF does better without needed different addon boards.
Yeah you have the good ones that are done the way it's supposed to be done.
Some places still use the old "single number, single read" type that's basically just a serial it says "Yep, I know you."