I have two, one has a 4 inch barrel so I don't consider it "mini" while the other is a 1.6" barrel in .22 Mag and has the LR cylinder. I got that because I felt at the time the fastest reload with an NAA was to have a second cylinder already loaded and the combo models offered me the LR cylinder, which I knew I'd shoot much more. As for the barrel, I wanted more rifling to stabilize the bullets better, not for velocity.
I have had some thoughts of getting the .22 LR only as it's much smaller than any .22 Mag model, but would I actually carry it? Maybe as a backup gun in colder weather, but in summer if I was dressed in a way I couldn't carry a .32 or .380 and had to choose an NAA, I'd take the .22 Mag NAA, not the LR.
They are fun to shoot and cheap to shoot, the 4 inch that I mentioned earlier I have put at least 1000 rounds thru, so durability and longevity isn't a problem.
IDK what to make of the Sidewinder and Ranger, the Ranger is a turn off because the selling point is a faster reload, but to me that isn't worth the price as after 5 shots I'd rather just run. Also, IDK how much wear that locking latch can take before failure and I've seen videos where during cocking you could end up pulling back on the latch and opening it at the wrong time.
The Sidewinder to me is the sweet spot in terms of reloading speed and price, I just hate that the front sight is a literal nub, like something on an 1851 Navy. I know, it's only a "belly gun" but the Dickerson shooting at the mall is showing us that while we expect things to be much closer, sometimes the situation isn't what we're expecting and if I have to aim, I want sights that help me achieve hitting the target.