I sent a few test transactions with XRB and they appeared in my wallet within 10 seconds. Confirmed on the network within 1 minute. I read the whitepaper and it seems solid and seems like it will scale much better than other mined coins, not to mention it's more energy efficient because of the lack of mining. Excited to see where it goes, as I'd love to see a coin that is viable for real-world transactions (honestly, I just dislike carrying/receiving cash and dealing with banks to use my money). Looking to check out IOTA next.