So after 6 weeks of having the Rapha Soft Shell Jacket, I can now say I feel it was worth the purchase. Riding in just over 1 Degree Celsius (34 Degrees Fahrenheit) for over 2 hours, the jacket was absolutely brilliant keeping me warm throughout with just a long sleeve base layer underneath. I would even say it at also at one point got a little to warm when pushing on at a good tempo for a over an hour.
I have also had the chance to test the jacket in the rain getting caught out on holiday on the east coast, and was kept dry after over an hour of using it in the wet.
Very happy to say the least, and it was a purchase worth while and one I am very happy with.