I have this in the tube variant. Tube packaging is my favourite as opposed to pots which are unhygienic and sticks which tend to be drier.
Product feels good and performs well upon first application - I love that tingling sensation. I'm not so much a fan of the shiny look, which is mainly caused by over-application; however, even though I've learned to control how much product I'm using, I still find that it's very easy for this lip balm to turn into a gloss, even if you use a small amount. This is what you get with tube balms, though, because of the nature of the packaging - it has to be squeezable, not completely solid, so the tube balm obviously has more give than the other variants because of this.
If you apply well (i.e. sparingly), this product does sink in and leave your lips plumper and a little softer. That effect wears off quickly, though, and you're back where you started, and you're stuck in the cycle of reapplying every hour or so depending on your habits and activities (rubbing lips together a lot, talking a lot, eating/drinking etc etc will of course mean the balm wears off more quickly). I haven't noticed any positive long-term effects on my lips despite using this every night before bed (will try the Kiehl's Lip Balm #1 soon and see how it compares in this regard).
I've resolved to using this in the mornings as a prep for my lipstick: I apply after cleansing and moisturising, do my makeup, and then blot off any excess Carmex before lip product application. My lips are smooth and supple and ready for my matte lipsticks.
TL;DR: Works well, but not for what I initially purchased it for. Good for prepping lips for lipstick.
I have a few spare tubes lying around, so I'll use them up. I'll probably purchase again - not out of necessity, but because it's so cheap and has a nice short-term effect. Still searching for a lip balm that has a positive effect in the long term and/or as an overnight treatment.