The SatNav interface is not as good/slick as it could be, and it’s a little clunky adding destinations but once you have figured out how it works I don’t have any issues with it.
Once a destination has been set, I think it works fine and I’ve never had any problems with it.
Appreciate that phones and mapping apps will have more up to date maps, but personally I much prefer just using the in built system in the car rather than having to connect up my phone, stick it in a holder on the dashboard, connect up the power cable, etc. I know its not a massively onerous task to do that, but I don’t want to do it unless I have to, and personally I think the Mitsubishi SatNav is adequate for my needs so I don’t need to bother with setting up the phone.