Got my Tastitints today. I really like them! I don't (can't) wear makeup at work, and it's really dry in there, so I'm always using lip balm. My preferred balm is MAC lip conditioner (tube). These are very similar. They are thicker, but not sticky. They don't impart enough colour to be noticeable.
I feel like these will keep my lips moist and protected. I don't think they would help much to heal already chapped lips. I plan to keep one in my pocket at work, one in my purse, one in my car, and the other one somewhere within reach lol.