Earlier studies show frail seniors often experience loneliness and

depression. Moreover, frailty can lead problems with medication and nutrition

patterns. The availability of family care and/or nursing care at home is limited.

Digital companions, such as social robots, could complement homecare nurses,

thereby improving the quality of care to frail seniors. The Guardian project has codesigned

with end-users, a social robot providing social company and health

support. To assess the digital and co-created solution, usability evaluations have

been conducted with 43 participants distributed as fairly as possible between frail

seniors, family carers and professional nurses; in three different European areas: The

Netherlands, Italy and Switzerland. The goal of this study is to evaluate if the

GUARDIAN solution is accepted by the target users and also gather data on how to

improve the system for ensuring added-value in home care. The iterative method

based on user-centered approach put the end-users at the centre of the usability

evaluation. Through thematic analysis of the qualitative datasets, we conclude that

a high number of users accept the solution and describe it as useful. End-user needs

have been mainly addressed but some new improvements have been pointed out by

the participants and some other needs have been uncovered.