Where to begin:
Amazzzzzing customer service. Calling out Jenn and Jake and even the founder, Steve here. I can ping them on messenger any time of day or night, literally, and they get back to me usually in minutes. It's insane. Not only that, but they follow up with me within 48 hours to see how things are going with the suggested changes, enhancements etc.
Email Verification on Roids: When I lead search using any database, there is ALWAYS a lot of junk emails in there no matter the cost or the product. Invalid, risky, etc. Interseller is like "never bounce" on steroids quarantining the garbage before sending and then verifying EVERY email as to its validity. Goods are truly GREAT and go through 100% of the time or at least 99%. If Interseller says risky or not verified or whatever...it's my choice but usually, those things bounce at about 40% of the time.
Ongoing training and feedback: For those in the know we really shouldn't be sending more than 80 to 100 emails per day. So you ask why? After years of using all types of 'spam cannons,' I was recently schooled on exactly how our trust score is calculated to ensure getting into the inboxes of our suspects. These guys can verify and check for you and give you suggestions to triage your account back to health if you are not following the suggestions. The suggestions they make are free. You WILL pay for the ones you don't take, however!
Updates/Upgrades to the software: EVERY single month if not twice per month they come out with all manner of new and innovative ways to make things better/easier/more efficient. I assume they are listening to the feedback from users but who cares from where the ideas are coming. Always great stuff.
Passion - The co-founders grew up in the email marketing world and have built the only platform I have used that is truly designed, built and created for and by email marketers/salespeople.
Ease of use - so easy. A monkey can get a campaign going in a few minutes tops from not knowing anything about the platform. Very intuitive.
Overriding errors such as "contact appear in another sequence" or "blacklisted" or any manner of other things is a click away to correct.
Baked in smart send functions such as time between emails and volume of emails per day.
Flexibility to send campaigns at a different time(s).
Finding mass emails - grab the URL and name and boom! Fast and furious lookups of multiple contact emails that need appending or updating. Deadly accurate results to boot!
So MUCH more but I think that is enough for now. Review collected by and hosted on G2.com.