It was quite convenient to have these tickets.
Claiming the Skyliner tickets were easy, both times -- at the airport and the Ueno (city) station to go back.
The 72-Hour unlimited ticket though--OMG, what a long and tiring way to get/"claim" it at Shibuya station. Maybe if I'd gone to or come from a smaller station, it would've been easier.
Then on the Skyliner, yes, it's nice, fast, good price (and even better when buying here on Headout, when it's discounted), but the interval time was quite long, so if your timing isn't good, you'll wait a really long time for your ride.
Meanwhile, for the 72-Hour subway unlimited ride, it really is only worth it if you travel a lot. But if you are staying at a hotel that's centrally located and will stay in and walk around the area, then you can't use the ticket much, and it wasn't so worth the time claiming it, besides the cost.
It's my own fault to not have done enough research or made decisions on what to do before I decided to buy. Otherwise, this purchase made traveling in Tokyo convenient (definitely having an unlimited card saves time vs. buying every journery--unless you have that Suica/IC Card, which it turned out I did from my 2014 trip which still worked) and helped saved some money.