Although nursing personnel have used personal digital assistants (PDAs) to support home health care services for the past ten years, little is known about their experiences. This study was conducted to examine experiences of nursing personnel using a specialized home health care computer software application called Gerica. In addition, this research analyzed how well this application aligned with the workflow of the nursing personnel in their daily care of patients. The evaluation methods included user observations and learnability testing. Nursing personnel from two different municipalities were observed while performing real tasks in natural settings. This study shows that the nursing personnel were satisfied with the PDA user interface and the Gerica software; however, they identified areas for improvement. For example, the nursing personnel were concerned about trusting the reliability of the PDA in order to eliminate the need for handwritten documentation. Solutions to meet these shortcomings for nursing managers and vendors are discussed.