Kris,
We've used it for three or four years. I'm a campus-level admin and I like being able to address individual grade levels or even classrooms and differentiate between staff and families as recipients. I also use it for permission forms. ParentSquare also has a robust automated translation capacity and allows recipients to designate Web, email, or text options.
Mark Loundy (He, Him, His)
Instructional Technology Specialist
De Vargas Elementary School
Ignited Fellow
Google Certified Educator