I was excited to get this at a discount so I could give my feedback, because this is a brand I already use and it's my favorite brand of decaling solution. The first time I used this, I got so much more gunk out of my Keurig than I ever have with any other solution. So it works great. As they say, good things come in small packages! I definitely recommend it and even though I got a discount, the full price isn't that high, considering if you buy the name brand descaler, it's like twelve bucks and you have to use the whole bottle at once. So this is a great deal.