I got this for a Christmas present and couldn't resist trying it early. It is terrific! I made a mug of coffee and it was hot and there was no bitterness. I will probably try to find the # 1 filters but just for ease of clean up. Because I made only a mug I cut back on the grounds and there was no problem with overflowing into the cup. This is a great product and I would definitely give it as a gift.