If the hdd is inserted then yes. If not then there is a slight delay (about 5 seconds) while it's trying to discover it and then gives up lol. But with the accelerator and hdd active it boots in seconds. And I have one of the classic workbench, 68k, packages installed. Which is a preconfigured workbench environment.
Also I have a different firmware installed on the ECS scan doubler and i have it running at 800x600 and looking really good.