I just bought one from Target today, and I have to say this gadget works great! Especially if you hold it at the end of your lashes and let it keep rotating, the lengthening effect is admirable! The problem is YOU CANNOT REPLACE THE BATTERY. There's no way to open the battery compartment, and who knows how long the built-in battery is gonna last? The manual said to discard the product after 90 days or if battery runs out before that. This is a blatantly shameless design to force people to spend money on a brand new product regularly when they could have easily designed a reusable one. Well, I am not about to spend $14.95 every 90 days, so there!