so is this site safe to deposit at all first ?
Do not deposit more than 0.1 BTC otherwise u will have an issue to cashout. I was waiting few days, they didn't fill hot wallet so when someone else did a deposit I took all what I could and waited for another deposit. Their investors run away cold wallet is still less and less. Make your own opinion but I don't need to be genious it's too risky for you.
I agree that to deposit is risky right now - if the devs were a bit more transparent than I would not be saying that - I pulled all my BTC out a few months ago - but have it ready to push back on the bank roll when/if I feel confident with the operation - but didn't until now.