I will say that prop gods isnt the cheapest on just one prop. However, if you wish to exchange for another prop, nothing beats them. Unfortunately I found out they did that after I was prop testing on my last boat and spent and lost tons of money buying and selling props on ebay. UPS made a killing off of me too.
I found shorts marine in DE to have the best prices on new merc props if you are sure of what you want. If not, I highly recommend getting it from prop gods as it will save you big in the long run!