Can somebody give me his advice?
I will repeat the points which have prevented me from ever using Zcash.
I don't trust the "trusted setup". On the one hand, 6 people are not enough to preclude collusion, or to provide enough eyes to do diligence against trickery. On the other hand it is too many points of failure, given that the incentive to defect is on the order of at least hundreds of millions of dollars, potentially many billions.
I don't trust the design. Sigint operatives have subverted NIST standards, inserted backdoors in commercial and open source operating systems, even intercepted hardware being shipped from a vendor and modified it to gain systems access.
Let's consider the known facts about the Zcash team in this light:
Greene is at UMd, and NSA is very tight with UMd. He has publicly stated that zerocash (upon which zcash is based) can be backdoored, in the interests of the government.
Zooko Wilcox, the most visible member if the Zcash team, after whom the currency is named (!!), has also made public statements - and subsequently retracted them - similar to Greene's.
Members of the development team include admitted former Mossad sigint operatives. And I don't think one ever really leaves the Mossad. The Mossad cooperates extensively with the U.S. intelligence agencies.
Now let's consider factors unrelated to the specific team:
The mathematics of zk-snarks is not adequately reviewed. Few people understand it well, and nobody understands it well enough to publish a peer-reviewed proof of its security in any feasible implementation. Existing proofs address much more narrowly restricted claims, and are easily used as a cover for insidious activities.
Anonymity is only useful if the participants in the anonymity set are many. The overwhelming majority of Zcash transactions are not anonymous, by design. This has terrible consequences for the privacy and security of those network participants who choose to use it's purported privacy features.
AlphaBay implemented Zcash on July 1st. By July 5th their servers were seized, and within days the principal operator was found dead, hanging by the neck in a Bangkok jail cell.
My conclusion:
I can not prove, but on the evidence and facts do believe, that Zcash is an NSA/Mossad honeypot, like Dash, and if you use it in conjunction with an activity which members of the Anglo-Israeli signals intelligence community are incentivized to disrupt, your life is in danger.
I have had extensive experience working with these people, and consider them to be ruthless sociopaths. Nice friends to have, and generally well-meaning and interesting individuals, but sociopaths none the less. Hitler was kind to animals and children. As Voltaire observed, if you can be made to believe absurdities, you can be made to commit atrocities.
Edit, in post script:
Besides which, I find it offensively stupid to pay the developers a 20% tax. I believe in voluntary support of the common good, not stealthy embezzlement. I am not volunteering to be anyone's tax donkey, let alone volunteering to be subject to invasive surveillance in the process.