I love my Ninja coffee maker, this was a gift (Christmas 2018) and upgrade from the original one.  I occasionally have the leaking issue, but not very often Usually only when I overfill the resevoir, and that is the only reason I gave it 4 stars.  I use it constantly, I love how I can set the delay brew for a travel mug, which means I am not wasting the rest of the half pot of coffee in the mornings when I have to go to work.