I like that it's easy for me as one person at my organization (and even more so if we have other people using this tool) can be up & running with all our prospect lists within minutes! It takes less than 5 minuts total - no need go through any training or anything else since there are videos available online which makes things very clear about how you use/use your account etc.. The only thing i dislike sometimes when loading prospects into Pardot via CSV file could take longer time but not much compared what they offer by default already included features such as Email Followup Lists and Lead Source Tracking feature among others.