Here is a comparison of some features of XDT to popular cryptocurrencies:

Artificially limited maximum transactions / s?
No: XDT, XMR
Yes: BTC, LTC, ETH

Transactions validated by
XDT: sender, receiver and one (or more) random wallets
BTC, LTC, ETH, BCH, ...: Miners

Double-spend protection achieved by
XDT: coins received through random addresses of the network
BCT, LTC, ETH, BCH, ...: waiting for enough confirmations

Transaction fees
Yes: XDT, BTC, LTC, ETH

Comparisons of other features and additional cryptocurrencies to follow.