Yesterday I was playing with ARK on Liquid's testnet, and what a blast.

Without worrying about incoming or outgoing liquidity, just receive and send instantly and also in a totally private way and without leaving a trace in the chain.

There is no link between your incoming l-btc in ark and your outgoing l-btc, in the chain I only see a kind of coinjoins.

Although let's not forget the liquidity problems that the ASPs have and the centralization problem that leads to the fact that the ASP can be accused of money transmitter.