I'm 9 mos. post robot. Most everything good, PSA undetectable, incontinence much better. Erections? What erections? Viagra, Cialis, Levitra have done very little. Ready to try the pump. Have read the good reviews of the vac. pumps; has anyone had any so-so experiences or unpleasant side effects with them? Always like to hear both sides of the story. Thanks all.