I finally broke down and got RD, so far I am not impressed. You do get more links, but for TV Shows these "extra" links seem to be 90% sometimes even 100% duplicates of the free links and have the exact same buffering issues as their free counterparts. For movies there seems to be more unique links but a lot of those have buffering issues, although you can sometimes find one that doesn't.I actually use two debrid services—Real-debrid and Alledebrid. Swear by them both for access to buffer-free HD quality links. The cost is minimal when compared to paying for monthly cable TV and greatly enhances Kodi addons.
I thought maybe my ISP (Comcast) was blocking and throttling links, so I tried using a VPN (Anonymizer VPN trial) with the same results. I have a 150mbps connection, hard wired LAN (not wifi) and can stream Netflix at 4k and Prime at 4k with no issues. So yeah I am not seeing all these "buffer free" links from RD.