Lets be honest here. If this is your first pair of decent headphones, chances are, you wont appreciate good QUALITY bass or lots of QUANTITY of bass. It's simply a fact; you wont know how to appreciate good bass until you've heard lots of bass, litte of bass, bad bass, good bass, and then took a handful of months heavily using headphones to be able to distinct good bass from bad bass.
The thing is, the more quantity bass you get, the more possible it is for it to overshadow the mids and treble, while good QUALITY bass slots in perfectly fine mid and treble.
Here, the quality over quantity saying isnt true. It's what you want; neither is true, but newbies generally appreciate quantity bass over quality bass; atleast at this stage.