Right, so it's back home now. They seem to have fixed what it went in for and as I thought, it was shifter cable related:
Car wise, it feels good to drive. All gears now go in smoothly, no notchiness and no weird grinding/not getting into gear, even goes into 1st well when coming to a stop!
Almost feels like, this is how it should of been when I took delivery
!
One thing I noticed however, and it sort of scared me, was when I pulled out of a junction at full throttle in first gear, there was a loud bang, coming from the front passenger side which literally caused a vibration throughout the body of the vehicle. It lit up a red light on the dash for a millisecond and then went away. Didn't have enough time to read or see what it was, and have been trying to re-produce it without luck. Will try again later when there is less traffic about.
My 2 cents on the above is, they probably forgot to tighten something up to spec again, but let's just hope it's a one off. It's always launched well in first gear, didn't even wheel hop much to be honest so this was a bit of a shock lol.