Great product! I don't understand how anyone could leave a bad review for Sendr. I read some reviews saying this was difficult to use regarding the UI being confusing. I did not find that to be the case at all. Building a template is a simple process where you can easily follow the fields in order on the left of the template builder screen. Uploading contacts is straightforward by CSV. Lead finder is a great tool with almost 500 million possible B2B contacts. All-in-all, I'm very happy with this purchase. I originally purchased the tier 3 and I will be upgrading to tier 4 today before I lose a chance to max out this plan. IMO this product is one of those no-brainer purchases on Appsumo. If I can't get my money back on this purchase within a week of using this, then I'm either not using it or somehow using it wrong, which seems hard to do.