Each has their use. The Flipper is nice for quick and lightweight checking of things. LimeSDR is incredibly capable, but also a bit of a pain in the ass to use. Not something you'll flip out to quickly check something or run an experiment.
like what?
~20 seconds and one cloning later, the installer said something like "Wow, guess we need to update the employee handbook" and I no longer felt comfortable with the installation so asked them to leave after that.
I also once forgot the garage opener to the public garage I usually use, but had the signal saved on my Flipper, so that saved me like 5 minutes of not having to park, go home, go to the car and then park inside the garage.
Otherwise, it's mostly just for fun.
Reading and cloning of those fobs was easy, but the receiver wasn't accepting reusable fobs. I had to buy a special write-once fob from Lab401.