It is a little discouraging to have your work dismissed in a couple sentences though. I put an awful lot of time into it.
Positive and negative comments come with the territory once you launch/announce your site to the public.
Anyway, it looks like you've got the skills to make something nice. Maybe you could try to push the space into some fresh direction that no one has done before, instead of doing an incremental improvement.
What is wrong with other sites? What does your site do better? I put about as much care into my comment as you put into selling your website.
FWIW, I also viewed it, thought 'what sets this apart from all the other alternatives?' and then left. I think your design is really loose. Other than that, I use a snippets function in my text editor and the things that doesn't cover aren't enough to warrant using a site like yours. There might be some advantage I'm missing though?