Looks nice! Strange to have removed a bit of chrome. My 2015 Lounge doesn't have an SD slot, so either it came with an upgrade pack or has come and gone.
29mpg around town is to be expected, I've got over 40 on a decent motorway run, and when making good progress on A and B roads. Someone on here commented that the trip computer accuracy was not good, so I'm currently checking mine with a brim to brim. May take a few weeks as I don't do many miles now I'm retired.