I just got these on Saturday (it's Monday now). I ordered 2 of the 16 packs (Barrel curls for 24" hair) since I have longer hair. Within half an hour I had all of my hair in 16 curlers! ? That's a win for me since I'm pretty much inept with other curlers or curling irons! ? I did prefer having two sets (32 curlers) over just one set (16 curlers) for several reasons: ease of application, drying time. However, 16 curlers are waay easier to keep out of your face than 32! ...but that's not the point of curling your hair, is it! ?So here's some tips that I'll suggest since there seems to be some disagreement on how easy/difficult they are to put in:1) Read the instructions! ...and then do EVERY step. Here's why...2) When choosing a portion of you hair for a single curler, keep it in a small area of scalp. It stays on the hook better with smaller sections of hair and dries faster. So, as much as possible, select a square/circle of hair and leave any distantly growing strands for a different curler!!3) Comb each strand. Because you don't want tangles or kinky curls.4) Twist all the strands together close to the roots! This is VERY critical especially if you're having tangling issues. ALL the strands need to be inside the pull hook to avoid tangling. Give it a couple of tight twists to be sure you've got them all.5) Keep the hook facing up and pull like you're casting a fishing pole. Or like you're using one of those tennis ball launchers for dogs...same idea. Just better than pulling it straight through. This just helps keep the hair on the hook once you've got it all on there. Also key for avoiding tangling!6) Once you've hooked your hair, hold the end of the curler close to your scalp and PULL STEADILY. Don't stop. If you do stop, you risk backing some of the hair off the hook, and then tangling.7) If it tangles, STOP PULLING. Hold the pulling stick still and with your other hand pull the fat end of the curler towards your head, up over the end of the hook (gathered on your hair) so you can manually unhook your hair. If you can pull the tangled part of your hair straight, comb it out and grasp either end of the curler, pulling it to its full length and let it curl up your hair. Otherwise, just re-do the whole thing.That's all of my suggestions for now. I'll update later when I've had more chances to really work with these.But remember, I'm pretty terrible at doing my own hair. I have 3 default hair settings: bun, braid, or down (forget flat ironing or curling irons!). If you're having some trouble, try re-reading the instructions, and try again...slowly. You'll get the hang of it!