RAIBLOCKS (XRB) is amazing. It is what a crypto currency should be. Once you use it, you are in awe and want to buy as much as you can when you see it at under $5. It seems that is what everyone does because it like $0.10 a few weeks ago.
It was designed for one thing and one thing only: to be currency that allows the transfer of value. It does that better and faster than anything else. Yes, even faster than a centralized bank coin like Ripple (XRP) with it's validators or IOTA with it's centralized coordinator. It's amazing to have multiple monitors and watch yourself send it from and exchange and get it in in your wallet at the blink of an eye.
I only hold a few coins long term (BTC, XMR, ETH) but this got me hooked right away. How is this not a top 5 coin right now? It's already doing what Lighenting Network promises right now! Imagine once the major exchanges have it, it'll be the standard way to transfer value from one exchange to another, instantaneously and without fees. I think this gives it the greatest potential for real world adoption in crypto once there is a mobile wallet that connects to a remote node.
It has some issues like the desktop wallet has trouble syncing and you have work around that. There are also open questions about how it would handle spam transactions. But it's amazing that RaiBlocks has jumped into the top 50 without shilling and hype and only available in 2 tiny exchanges. When this hits a major exchange or two this will be a top 10 crypto. With further development and better UI clients/mobile client and some marketing, Raiblocks could be a challenger to the throne.
Also one of the great things about XRB is that it was fairly distributed. A lot of people earned their Rai solving captcha. It seems there were Venezuelans doing this and it's great that the meteoric rise in value is going to some who acquired them.
I usually don't get excited about alts because almost every single alt is hype, a scam or not a working product. But having a crytpo provides utility and does a single thing like magic has gotten me excited.
Raiblocks is all set to become Binance community coin of the month.
Great white paper.
Lightening fast transactions per second, even compared to Ripple.
The one for 1st quarter 2018.