Cryptotechnical you can say it is a rather cheap done solution and this I agree in and you have to know what you do it is not quite easy to handle correctly. But faulty it is not. It works. You can not deanonymize the mixed coins ever when done correctly. (Contrary to when it's "just" encrypted in the blockchain)
Whenever I show someone Dash I explain him or her the normal use case because for 99% this is enough. It is "lightening" fast and cheap as it should be and has to be for a cash coin contrary to what bitcoin has become now thanks to that so "clever" core devs.
And I explain the InstantSend feature because that is just a simple click on the checkbox. About private send I only say don't use it except you really need the feature because it will make things a lot more complicate for you.
I don't have time to argue now, to put it simply.
Dash leaks metadata, Monero doesn't, that is the core difference.
Dash relies on the assumption that Nodes are trustworthy, Monero doesn't, monero places all the trust in the encryption, which by any risk standard has a lower probability of failure than the nodes.
Nodes could be hijacked, hacked, coerced, monitored, etc... By this metric, Dash is inferior to Monero in terms of privacy.
Now this vulnerability I criticize, however I like other aspects of Dash, and hold some Dash as well, so I am not a hater.
Now you get it. Thanks.
If Bitcoin fails than we will likely see Litecoin, BCH and/or DASH as the next best for cashing used main coins or a total collaps of the cryptomarket. At least those coins have a good way grown up community and so a "fight" won't end up in "my coin is better than your coin" spam in the other coins thread ... at least I hope that. We will see.
No, in my opinion this is what will happen:
LTC is bullshit, never went anywhere, no reason for it to go up now when there are so many BTC clones out there, I think even the developer left, it's a joke.
BTC has strangled itself with the 1 mb block, it's dead.
Monero is a newcomer, but it still has a small userbase and low economic activity behind it.
So the only 2 probable coins for now are Dash and BCH, which one will win? I don't know, I bought both.