I own a Ninja blender/processor and a Ninja Air Fryer that I love, so purchasing this was an  easy decision.  The whisk feature works really well and it's nice having an extra basket to make teas, so your tea doesn't get coffee flavored.  Unfortunately, the machine constantly leaked coffee from the basket area once brewing was completed.   I used the metal filter for about 6 months, and then switched to paper to see if that was the problem.  I tried using the 'no drip' feature in various ways, and that didn't do anything either.  In the end, if you don't immediately take the basket out and toss the grounds/filter, it's going to drip onto the heating element.