My initial reaction is that it's a simple and easy to use tool to get lead contact info.
The chat support answered my question within a minute!

I would like to see better filtering capabilities. The "country" field can be used to search city and state though the format isn't clear. Also I would like to filter by more than just high level categories otherwise i will be downloading lots of extra leads then filtering down.

The cost of 1 code makes this one easy to try out!