This is an excellent product for lead generation! It's very easy to use, has great tools available (such as auto-responders), works well with other services such as Hubspot, etc., there are many integrations that make it even easier. I have not found anything in particular that makes me dislike this service so far - though we haven't used all of its capabilities yet! The only thing you may see is some slight lag time when sending out new emails or campaigns; however, our team just recently upgraded from using another email platform which was way more sluggish at times. We were looking into different platforms but didn't know where to start. After reading reviews like these, we decided to give PlanSolo Lead Generation a try because they had good customer support over live chat/phone if needed.