Killer product is such an amorphous phrasing. If the author meant best product, I agree. If the author meant best selling, I'm not sure I agree. MS Word need

Killer product is such an amorphous phrasing. If the author meant best product, I agree. If the author meant best selling, I'm not sure I agree. MS Word needs to have all those configuration options for IT to check their boxes AND write the enterprise sized check. If you are making a consumer app, this all seems like good advice. But I'm not sure it is good general advice.