Uses a bunch of technologies to be private. It’s not more private than Monero except Monero still doesn’t have IP hiding where as DeepOnion uses Tor to hide Its
They airdrop constantly
They do good marketing
They are trying to get stores use deep onion which is their entry to market however privacy coin = banned coins for governments. Stores will probably not accept privacy coins.
Their marketcap seems low compared to other privacy coins in this level
They seem to have a bigger community than expected
Conclusion
They shill a lot but I don’t see a clear path to market domination.