Is Amazon Prime worth it to Hawaii?

[macuu222]

I have noticed that some of you on Punaweb use Amazon Prime. I have never use the service myself because I don't order very much on-line in a year. Hawaii delivery times for Amazon prime are longer than the mainland averaging 3 to 7 business days for free shipping (of most items) which is the same for non members if the order is over $25.00 dollars.  Also do they deliver to your street address using fed ex or UPS...or do I also have to have a P.O. Box listed in case they switch off to the USPS? I dread standing in a long line at the post office for parcels every time my order comes in. It seems like its not worth it to me!