Having read the numerous five-star reviews of this product, I was very excited about receiving it. And while the instrument looks quality to the naked eye, I found it to be lacking in many areas.
One of the reasons that I bought this was that I figured fibreglass would be much tougher than ceramic or clay, and thus the udu would last much longer. However, I had neglected to think about the most important factor with any instrument – the sound. The instrument sounds awful to my ear. It has an almost plastic sound to it (which is understandable I guess) and has very poor resonance and a disappointing bass. As a result, it was not at all fun to play.
While the finish looks good from the outside, if you hold it up to a source of light and look inside, there are several random patches where the material is quite thin, and others where it is thicker.
It also has a terrible, chemical smell which adds to the feeling that you are playing a lump of plastic.
So, to sum up: Robust, but sounds rubbish and smells just as bad.