I remember the first time I saw slender gold I had something like an 'am I dreaming?' moment. That's not how characters were supposed to look! The lines aren't supposed to cross, etc., etc.
But wait, it actually looked better than characters were supposed to look. The same way grass script makes kaiti look 'uptight', 瘦金體 makes kaiti look 'lazy', and clerical look 'boring'.
At this point, one year down the line, slender gold is my favorite calligraphy style. In fact, I am trying to learn it, and I wish that everything I printed out in chinese could be in slender gold. Is there a slender gold font?