Bests & Worsts Reviews from Amazon

I've been using this product (with refills) for two years. My cat loves this kitty grass. I posted a review in 2014 but I wanted to update with some things I've learned since using it. First, I find that using all the seeds at once makes it too compact and dense and I think that promotes mold. So I get two plantings out of one refill of seeds. I don't use the inside container with the 4 compartments. I use the interior liner under the 4 squares; save it and use it a 2nd time. This allows the grass roots to spread out in the dirt and last longer. Also I think that using all the seeds squeezed into the 4 compartments promotes the mold that some users have mentioned. I do have to supplement the soil (the 4 pellets are only good for one planting) on the 2nd planting. I've been using the original wood box for two years, still going strong. I buy the refills and use one refill for two plantings. I toss the 4 compartment container. I use the fill size liner twice (use my own soil for 2nd planting. I use half the seeds for each planting. The cat and I are both happy with this system.