It will be a positive bump. The products will be more efficient because of the use of these new refrigerants. That also depends very much on how the product is manufactured and its capacity, but in general you will see a bump.
In terms of using these hydrocarbon gases, they have very low global warming potential, on the order of one to three times the global warming potential of CO2, so they are a significant improvement over the current HFCs.
The one thing, obviously, is that gases like propane and isobutane are flammable, so precautions will need to be taken in terms of manufacturing. However, in both Europe and Asia, they have been using these hydrocarbon gases in their refrigerators, freezers and dehumidifiers for over 10 years already.