If you want to try Lightning out - and see for yourself whether or not it is vaporware - the easiest way to do that is to get a mobile Lightning wallet such as Eclair (fairly easy) or BlueWallet (easiest) from your appstore. As I mentioned, ManyVids accepts Lightning payments for a real product, as does https://www.bitrefill.com/ (phone refills, gift cards, etc). For testing with smaller amounts, https://yalls.org/ will let you buy access to blog posts for trivial amounts of money (eg one cent).