Wingback review for Klaviyo: Email Marketing & SMS

Switching to Klaviyo from our previous well-promoted but under performing ESP has transformed our email marketing success. Klaviyo provides vastly superior data on every customer, every automation and every campaign, helping us make better decisions and drive greater ROI each month. The support guides are really comprehensive, their team are always quick to provide guidance and the platform is constantly improving. Keep up the sterling work Klaviyo.