SPIBI is a strength-based early intervention targeting parent-child interaction amongst extremely preterm born infants, currently tested in an RCT in Sweden. Of 130 infants, 72% have reached 12 months of age. Based on interviews with 17 parents’ and 6 intervention providers we identified SPIBI strengths and shortcomings. SPIBI seems feasible, is possible to integrate it into home-visiting practice and is appreciated by parents. Identified challenges are geographical distance; recruitment obstacles including Covid-19, leading to longer-term implementation; service-provider fatigue; and social adversities amongst some eligible participants requiring ethical considerations. Future improvements include: reconsidering inclusion criteria, increasing use of e-health, and exploring the possibility of a tiered approach.