I have the greenhouse now the 3rd year in use - even with pots, sometimes I have the earth just so filled in the tub and then into given seeds. The seeds have germinated always good. The lid is indeed only issued, but does not slip. By ventilation above you can make sure that the desired humidity in the greenhouse is, the side holes ensure that there is always a little air circulation. I am pleasantly surprised that the plastic is in the 3rd year still no cracks or demolition at the edges, although every now and douse the seeds to the children. All in all, a stable house, I do not want to miss.
