Easy to swap hybrid inverters?

[Sterling9250]

Is it generally easy to swap a hybrid inverter? I have a SAJ (they suck!) inverter and I was considering replacing it with something else, like DEYE or Goodwe. Everything on the SAJ is already installed. I figure I'd have to change out the smart meter but that might be about it since everything is already wired. Fairly easy to do or are their other ramifications I am missing?

 

[SeaGal]

Fairly easy to do or are their other ramifications I am missing?

Compatibility of:-
Voltage & current of PV panels.
Number of strings.
Battery voltage and comms protocol.
If grid-tied, then approval of inverter and export limit with your power company.
Wire size and fuses if different power output.
Physical connection of AC circuitry and DC battery connections.

Apart from those, you sound good-to-go