I tried out the Pennington Smart Feed Sprayer System on my garden plants in our front yard. I thought that the sprayer system was very creative and was excited to begin using it. Unfortunately it left A LOT to be desired. First of all the nossle leaked all over the place and left me soaked. Luckily it was a nice warm day and I dried out quickly…although I would prefer not to get wet. Secondly the fertilizing discs were used up incredibly quickly which was very surprising to me. I was so worried that it would ruin my plants with using so much fertilizer so quickly but fortunately the plants all have seemed to be doing alright. I did receive the 4 pack of refills also and decided not to use them until after I was certain that the plants that I originally used them on would survive. I wouldn’t recommend this to anyone because to me it isn’t worth the money. I do still LOVE the concept and hope that Pennington will improve the discs to dissolve more slowly and then it will be a force to be reckoned with.