When it comes to any kind of app or Web site, it just needs to work. I was recently approached by someone in my network checking to make sure a connection would be a good referral. The organization has a sizeable Web site which includes event calendars and ecommerce (primarily in the form of registration payments for events), but for a recently designed site I'm left feeling like I time warped back to the 90s.
When you embark on the journey of creating something, it's important to remember your audience. Whether it's coming up with a great blog or presentation, a re-designed or completely new Web site, or a brand new product or service, it's important to keep in mind that, without an audience, you're really just talking to yourself.