I am a little biased - since I am a member - but we try hard.
Yes ... we are probably more amateurs than professionals, however we enjoy singing and performing. True madrigal music (from the late 16th and early 17th centuries) is quite difficult to sing as it is well outside the modern day harmonies of the music of today. We often sing acapella (the traditional way), though sometimes employ traditional instrumentation (at least as traditional as we can get).
Criticism is good, but try it before you pass judgment.