I looked up where Reb Chaim Kaneievsky quotes the Chazon Ish as nearly vomiting when he saw a clean-shaven bachur. He writes that the Chazon Ish had the same reaction when he saw a man with his payos behind his ears, and explains the revulsion to both of them was because they are embarrassed to openly look Jewish.
This is obviously NOT a halachic issur but a personal sensitivity.
The bottom line is, while there are numerous worthy reasons to grow a beard, it is certainly permitted according to Halacha to remove it with any shaver that leaves over k’chagiras tziporen.