I don't really drink coffee, I bought this as a gift to my parents. They've been using a keurig for years and just got sick of it not making full cups anymore even after descaling. They love this ninja brew system. The ability to schedule a pot to brew in the morning is something that they missed being able to do.  They use the kcup attachment on the weekends. I've used it for iced coffee a few times. None of us have had any issues or complaints so far. We are really enjoying it. And love the frother feature! I hope it lasts a long time without issues.