My last box of coils have not lasted. First 3 only lasted a day. #4 just quit on the second day. Never had any problems before.

Works fine-seems to last a little longer. I agree the tank does not hold as much.

I get about 11 days out of each coil. So buying a box at a time is a great value for me. New Leaf has many flavors to try also.

They seem to be longer lasting...however they do not seem to seed correctly or tight enough.

I srtuggle with getting the cap back on when filling, plus the tank is not big enough