I'm actually quite interested to try out Spectre using their wallet mode.
Its like you are trading directly from your own money stored at your own crypto wallet.
When you win, the money is directly credited into your own crypto wallet so you won't have issue with deposit and withdrawal. But main concern in wallet mode is that the winning payout is lower than regular account.
There are also delay issue when execution of trades, by quite a number of seconds.
Hopefully someone can share the experience on their trading journey with Spectre