ActiveCampaign is being used solely by our marketing team. It is an economical tool that addresses the fundamental aspects of marketing automation, including email marketing, form handling and lead scoring.
It's reporting functionality is terrible. I can't emphasize this enough. There is not a path for ad hoc reports; only canned system reports and some ability to use advanced search and filters to "try" and work around this.
The form tool does not have the best styling capabilities.
Their list building / segmentation features are difficult to confidently maneuver when trying to establish unique paths for individual contacts based on certain triggers / behavioral actions.
ActiveCampaign is closest in proximity to Infusionsoft but falls short of in most every area except price. It is not in the same ballpark as Pardot, Marketo and HubSpot. To be fair, however, one also has to pay a great deal more for those solutions.
If someone needs an economical entry into marketing automation features and does not require any comprehensive reporting, ActiveCampaign can be a suitable tool. If ad hoc reports and advanced list segmentation features are important, avoid it.