Using the Keurig Descaling Solution makes cleaning your Keurig Brewer very easy! It doesn't take a great deal of time.  There's no mixing or measuring with the homemade version, of which I've tried. I was quite surprised at the amount of calcium scaling this solution removed from our brewer! (The homemade version didn't remove anywhere near this amount of sludge!)  I'll be purchasing more of these bottles to have on hand when the little cleaning message appears.