I've found Reddit to be hit and miss. When it hits, it's awesome, but sometimes I get a whole lot of nothing.
I think the key is that your content needs to fit nicely into an active subreddit. If there's a good match between the content you are producing and the readers of an active subreddit, then you'll have great success. I've generated thousands of hits from Reddit within 12 hours along with 50+ comments.
