If you dont trust any of those Neo wallet providers, why dont you store your neo's on a ledger wallet?
it it is much more safe than just having all those coins in there, and we all know that they are pretty expensive right now (it is not $5 as it was a few months ago)
I dont trust in all those online wallets from neo, i had more than 10 in there and i feel very unconfortable, i dont know why, but i dont trust them.
The same happens with MyEtherWallet, it is very risky for me.