Hex started out good for me and I got in before the Big payday so I was fairly happy with it. Staking was no problem, and the tutorials left no stone unturned, with the exception of 1 major point. The Fees associated with withdrawal.
For big investors it's not that bad, but for the little guy who's still learning the ropes, in regard to ERC20 tokens, then it can quickly become a frustrating experience.
In the end I resorted, to just leaving my tokens in my wallet, and waiting for a solution to present itself. Fortunately projects like Change now, were brought to my attention, much to my relief. I went with Change now to exchange my tokens and ten minutes later, ended up with a good return of my initial stake.
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All in all I would recommend HEX but you must be aware of the current problems with Ethereum and plan accordingly. Eth problems have investors moving house to wherever cheaper fees are residing. The downside to that is the risk.
To my knowledge I don't know of anyone who's been shafted by HEX at all, so it would be good to keep using the tried and true.
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