Ok kmkz, fair enough - I couldn't play it due to the time, but I will do so after work. One star ratings are only appropriate for very low quality maps, such as an empty box with a few monsters in it. I don't know why but here's been a recent widespread spate of 1 star ratings for undeserving maps, often with no constructive comment, which is pretty unfair.
Even if this map does has severe gameplay flaws it surely deserves better than "poor", the lowest rating possible. I think you should try to be fairer and judge it more roundly, however as you state, it is your personal opinion. Bear in mind, however, that mapping takes a great deal of personal time, effort, acquired knowledge and skill - if mappers receive only criticism for their work then they simply won't continue.