I used to carry one around the house and yard when I was growing up - loved them but wouldn't carry one now even if legal in all places. My father got me one of the hair comb toy versions at a flea market when I was about 6, then a year later a cheap $10-15 with a blade that he rounded the edge and tip on, and after that something similar to a Bear & Son that was pretty nice (8 or 9 years old it was the coolest thing in the world).
Probably got cut at least 50 times with one but to just pull it out and use it I never really flipped it around, just flicked off the tab and did a wrist rotation like casting a rod to make the handle fan open while it turned in my hand and it was open and ready in split second. Would make little spears, staffs, escrima sticks, and other cool toys with it in the yard, cut weeds around my mom's garden, slice up some fancy cheese and summer sausage, etc.
When I took it with me to train and discuss knives for back up weapons (a few others brought one a couple times) I realized they actually suck compared to your basic modern folder design, more or less. Inertia opening regular folder design when a guy or two is actually grabbing or hitting you is much more certain and most balisong handles are not good for retention especially if you goof up and holding half of the handle.