Summary: I dont regret purchasing this item, and although i may buy a higher quality mic sometime in the future this does a very good job at a great price and I highly recommend it.
Pros: I was actually looking for a smaller mic to use with my Kodak zi8, but this still works excellent with that device. I have also used it with my panasonic gs100k and a friends Canon 5D mkII.
Cons: The battery may be hard to find when it runs out, but it seems to last a long time. The battery cover looks like it may not be on very securely, but i just put a small piece of gaff tape on it and it holds perfectly. Maybe it is me just being paranoid, but I seem to have a tendency to loose things.
Excerpt: I bought and tested the ECM-SST 1 compact mic on a NEX-5 during lunch hour, shooting into a continuous passing crowd on the Ave. of the Americas, in Manhattan. There was also a crosswind present.