I think for reliability, you would be better off using a DAW (recording/mixing software) in a computer, along with an Audio-Digital interface.
The interface will supply the hardware inputs (mics, guitars, midi) as well as outputs for monitor speakers and headphones. The determining factor will be how many inputs you require for simultaneous recording.
This option doesn't provide the hands-on faders and knobs of the physical console. All of that is done within the DAW using on-screen faders and knobs. Takes a little getting used to.
If you don't have a computer or don't want a computer based DAW, you might look at Tascam's DP-24SD or DP-32SD Portastudios.