Ask HN: What's your competitive advantage?

I don't have a good answer for that myself either (yet.) But for what it's worth, there have been some good articles and discussion around this topic before, that might be of interest to anyone who hasn't already seen them:

http://blog.asmartbear.com/not-competitive-advantage.html / http://news.ycombinator.com/item?id=1507887

http://blog.asmartbear.com/unfair-advantages.html / http://news.ycombinator.com/item?id=1528614

Non-YC Startup here (ParkGrades.com): Offer a better user experience. Compete on quality, not price.

Price point: http://www.zuupy.com