With the way adult teaching and learning is changing – mainly due to diversity of student population based on age, ethnicity, work experience and learners’ personal responsibilities, tertiary institutes are moving towards learner-centred approaches including comprehensive learning and flexible assessments. This paper presents "Flexible Assessments", an approach inspired by Ako – facilitating positive learning relationships through shared leadership between learners and facilitator, as adapted at the Waikato Institute of Technology (Wintec). Flexible assessment gives learners the flexibility with the type of assessment (how), the timing of assessment (when), and the quantity of assessment (how much) they choose to attempt while ensuring that the assessment integrity is maintained and that the learning outcomes for the course are achieved. This paper discusses the current achievements of flexible supervised assessments from the learners’ perspective and the tutors’ perspective. It also outlines some potential improvements to be made in the approach, based on analysis of quantitative and qualitative feedback from its initial implementations.