I had a minimus and loved it but it delaminated (ie lost its waterproofness) within a year. I got my money back and bought a Rab Newton and it's been excellent. I also have an old OMM which is lighter and I use for fell races etc. There's a host of jackets out there, L100 requires taped seams and something made as a proper waterproof not a shower proof etc. Not sure a Minimus would pass the test as I think there is an issue with pertex material. There is a review of winter running jackets in the current issue of Trail Running mag