For me, complaining about the formula and not ending my sub feels justified because the formula hasn't been consistently bad for me. It's hit and miss, and I've had good experiences with CS so far with the misses. I have only contacted them when I receive dried out glitters, but will probably start contacting them about goopy polishes - not for replacements (I don't mind thinning them down myself), but so they know about batch issues and can track how many "bad" polishes there are out there. When there are colors/product I'm excited about, then the sub feels totally worth it. There is something to be said for length of subscription though, because I have noticed a similarity in colors. Even though they aren't dupes, they're close enough that I feel like I don't NEED them because of my budget - mind you if I had an unlimited bank account, I'd probably never skip a month! Honestly, I just really like the bottles.. they look so classy, even though they're completely impractical. I'm a sucker for nice packaging.