SUPER EASY
What an easy way to add-on for family, friends.  During the holiday's or special times, Amazon offers deals which give extra mula for amount added over a certain amount (in my case $100), which made it a perfect present for ME:-)  I shop for so much, from toothpaste to hiking shoes, so these deals are prime (no pun intended, hahah).  Also of note is the ease of use when tied to one's account and purchasing.
Rating: 5 stars