Reportz is user-friendly and flexible, when it comes to integrating your reporting, and arranging custom dashboards that makes sense for your business. They have a lot of integrations, and it seems like more have been added. The only issue I've had is that their Google Sheets integration can be buggy. However, their support has been responsive and helpful in finding workarounds to that. (The biggest reason I'm using Google Sheets is because Constant Contact has yet to added as an integration. Hopefully, that gets put on the roadmap at some point.)