I like privacy coins. I believe they have a clear use case as with other cryptocurrencies without a privacy feature, your transactions will be documented in a public ledger and therefore traceable (especially for governments). There are certainly instances where I would prefer this transparency, but for a transaction between two persons, a privacy coin will always be my first choice.
When it comes to PIVX, I doubt it is the best coin of its kind. Monero and ZCash are already more established. From a technical perspective, I am not sure though, which coin has more potential. I guess there is a tradeoff between strong privacy features and transaction speed and or transaction fees. Can anyone shed some light on that?