Thank you @efren.arnaude.
I just discovered the Loofah a week ago, so I am glad to see that my intuition for this plant is correct: you've been using it for 2 years, and you are happy with it - it is a very good sign! Thank you for sharing your experience with it.
Now we have to make people aware that they do not necessarily need to buy toxic sponges for their everyday use, and that the little effort to switch to the Loofah can also help the planet!