Well, as I suspected - do NOT go for the BP Pulse.
After a 13 month wait I finally got it installed a month ago, downrated to 3kW pending the main incoming fuse being uprated to 100A.
Yesterday the fuse was changed and BP asked for a photo, which they accepted and said they would uprate it remotely. This afternoon they emailed me to say it was now at 7kW....
Well it's actually zero kW because it's simply stopped working.
The only way to access the settings is via a mobile phone "App" - there is no local panel - and it just says "error" whatever I try to do.
So it's now turned off at its RCD in case it tries to burn my garage down.
I did NOT choose BP, it came "free" with the car, it would never have been my choice and I even got given the latest version because of the 13 month delay hoping the newer version would be better, but no....