Trading with zcash is okay and worth short trading for the
meantime. Its risky to keep the coins for the long term,
since the price been high and new release in the market.
Stay at the safe side and be wise enough on trading this
altcoin.
The risk isn't only on long term, this coin already failed, if I bought it, I would just sell everything I have while I can, because tomorrow it can be too late and the loss bigger. It doesn't worth anymore, maybe at the beginning, when it was a good promise, but the reality wasn't so good.