[bambax]

Using an ordinary English word with no capitalization for your product's name makes the marketing copy hard to read.

I first parsed "Why rather kicks ass" as "Why rather kick ass" and thought "yeah, why not go kick some ass (?) instead of sitting behind my computer like I've been doing all day".

Then I realized you meant "Why our product (which is named "rather") kicks ass".

[AznHisoka]

This might also be a sign the copy is focusing too much on themselves, and why they kick ass... rather than why you can kick ass if you use it. A subtle difference.

[lesterbuck]

A subtle but crucial difference. Kathy Sierra gave the canonical presentation on this in 2009

http://businessofsoftware.org/2010/05/kathy-sierra-at-busine...