I bought this deal to try it out. I already use two other data scraping platforms. So far, I think it's worth keeping. The leads are decent overall, though I did notice some outdated information when I double-checked certain towns and categories. Also, the email verifier isn't the best out there. It's a bit annoying to have to scrape city by city, and sometimes even parts of cities like Berlin or Hamburg. But considering the price, the results are totally acceptable. One taco is lost due to quality of data and email verifier. The city-by-city issue could be upgraded and since it is not part of this deal, I will not take away another taco.
Ideally, I'd like to see a Tier 2 offer in the future. Maybe they'll introduce it if they see that not many people are signing up for the annual plan. It seems like more and more companies are using AppSumo to sell upgrades after the initial offer. In this case, I wouldn't commit to the annual price because of the data quality issues. But for a one-time deal, I'm willing to overlook them. So fingers crossed for improvements and future deals!