Having sharp projecting points is not good.
I came across this building being built in Copenhagen. One might say that this is a totally different experience but not to all who feel that this is not even aesthetically pleasing in the architectural sense.
In term of FengShui it violated many rules, poison arrows, rushing Qi, unbalance Qi and etc. This can creates problems to many especially to the surrounding buildings and neighbours. People are easily get agitated, angry or even depressed.