[mhon72]

Because of the coding of the ECU Superchips would I believe need to remove it and physically modify it in order for them to upload their new maps.
The Polestar option installed through VIDA circumvents this locking.
However, it might be possible to unlock the ECU with VDASH beforehand which may allow a third party aftermarket upgrade to be then installed. Please correct me if I'm incorrect.

In terms of reputation Superchips have been in the tuning business a good number of years to produce reliable maps.
My wife's C-Max has a remap installed using their Bluefin OBD2 device and the quality of service & support they offered in designing a suitable & usuable map remotely was fantastic.
They don't have this option available to Volvos though.
I have Polestar on my D4 AWD which brings this up to a standard D5 AWD output. Sadly there is option to raise this any further.
Another option I should have considered is the BSR PPC device which is similar to the Bluefin in operation and offers up to 245bhp.