Great service but still concerning

I have purchased a Twisp Edge about 2 months ago and have been mostly satisfied with the product...when it works. I have noticed that there is problem with the Atomizers that the Edge uses. For the most part the single units are fine but in the boxes of 3's only 1 out of the 3 work. The atomizer either gives off a burnt taste from the onset and gets even worse over a 24 hour period which then causes me to replace the Atomizer. Either that or the Atomizer leaks fluid into the mouthpiece and gurgles from the onset as well. The lady at Cresta was kind enough to replace the 2 faulty Atomizers free of charge but as a product I am sorry to say that having a 33% chance of having an Atomizer that works does not bode well for Twisp as a product and it does make me wonder if I made the right decision in purchasing the Twisp in stead of another product.<br> Great customer service from the Cresta Kiosk but disappointing product from Twisp.