My 2013 car (now sold) came with Audio20 and Becker Map Pilot, which I have used without an issue until I had the Audio20 upgraded to COMAND.
However, it's one thing using it if you already have it, but buying in 2022 a satnav designed in 2010 is another.
There's initial cost - around ~£150-£200 for eBay, and then the annual maps and speed cameras update which is another ~£90 a year.
There are simply better solutions out there both in terms of technology and price-for-value. The only thing that the Becker Map Pilot will have going for it is the originality factor and the full integration with the car's instrument cluster.
To be clear, I am not suggesting that the OP should under no circumstances buy a BMP unit, instead I am saying that simply buying the missing satnav shouldn't be the default go-to option - the OP would be well advised to consider all available options before making a decision.