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The Horizon 2020 iFACT project successfully established Europe as a leader in iodine electric propulsion. The project matured and validated a 300 W iodine EP subsystem, which demonstrated over 3,100 hours of operation. Comprehensive tests confirmed the compatibility of iodine with spacecraft materials, revealing no critical issues that could hinder its use. Significant advancements were achieved with C12A7 thermionic emitters, increasing achievable current densities by orders of magnitude. The team also conducted integration and coupling tests of a complete iodine propulsion subsystem with a CubeSat platform, demonstrating system-level readiness.