I did more research following everyone's suggestion. Seems like the the best option for a family of 4 and above, it is the cheapest to use LYFT. For a couple, a Princess transfer is probably the best bet with the peace of mind. I found the price the transfer service from IAH is 79 ish per person, excuse me if I am slightly wrong, I just remembered I did the calculation in my head and figured out it was way to much for my group. But I am also did not continue to research if Princess transfer will work if your arrival/departure day is not on the embarkation/debarkation.
