PLEASE... stop associating XRB with IOTA .. They have NOTHING in common... other than having 0 transaction fees. It is actually the only good thing about IOTA. XRB in comparaison:
- Is fully decentralized
- Has really instant transaction, faster than any other coin (it currently average ~1.7 second and it can be improved)
- Is really scalable, it has been tested to handle 7k + TPS
- It is truly open source, the dev are sharing everything they do which make its development grow exponentially, there's currently 3 wallet in development at the same time for example

XRB is not DAG, or well not the "IOTA DAG", its a block lattice, a much simpler and effective technology. For example, the IOTA white paper has ~26 pages, the XRB white paper has 8 pages.