So far I really like the flexiplug, my only concern is not being able to separate seeds if I sow more than one seed. I was starting saved seeds from the year prior (unsure if they were good), so I started two in each plug only to find out after that the sponge plugs can't be divided easily without damaging delicate roots. Germination took off which is great. I think next year I will try using my own soil plugs to determine if I prefer the sponge.
The product worked well as far as quick growth, however the plants needed to be transplanted to larger pots quite soon. It is a great seed starter system.
I can't believe that I have gardened all of my life and have never used anything like this. I always get 100% germination. They are easy to use and I am so glad that I tried them and love them and ordered more.