Pros:
If you're looking for a user friendly lead gen tool for prospecting, this is worth consideration. You'll need a website URL, business name, or LinkedIn URL to find key contact information - primarily email and phone. It also has some email outreach tools but I didn't explore those as there are other more robust lifetime LTDS for that.
Drawbacks: API is lacking. Only the Email Verifier tool is available. If you're looking to streamline and automate, this is not the ideal resource for that. On that note, the Email Verifier yields every email as unknown status. Maybe there's a bug that needs fixing there. I've used other tools (both on AppSumo) that I run verification on and get real detailed results so this portion of the app is simply not reliable as of now.