Hey buddy.
I'm new to the GTi world also had it 2months now and done
2400 miles (do about 300+) a week with work.
I absolutely love the car my pride and joy. With regards to driving I have found that the individual mode works well and normally never puts a foot wrong. I have played with the padles in sport mode and love it but as you say drinks fuel but suppose that's part and parcel of a GTi "smiles per miles" I tell the Mrs.
She has done two long runs from home in Cornwall to London and she managed to get 46.3mpg out of it which I thought was decent. I've not tried overtaking using the padles so will tonight (I'm probably doing it wrong anyways) only things that are slightly annoying is the "pre flight" checks you have to do before you drive turning off all the lane assist etc and stop/start
I have found that on long drives that my knee/ankle have slightly ached a little possibly due to the pedals slightly to the right orientation (or at least to our other family car rav 4)
I've wanted a white Gti since I was 17 I'm now 41 and so happy to finally have it so can overlook the small little niggles and let's face it whats a knee replacement for and exceptional car!!
I've tried the "emotion" start as well (Google or read on here and try) and the 17year old in me grins every single time!
Hi mate, thanks for this and interesting to read. Have used the emotion start and i do like it... one of the neighbours lifted their head up to look the other morning when it fired up

I've wanted a GTI for a similar amount of time to you so i was super excited to pick it up and i'm loving it so far. Fabulous all round car imo.
i must admit i got a little right foot ache coming back from Scarborough at the weekend, couldn't quite work out why but i think the pedal set up is a tad different to the A3 i had, so probably a bit of muscle memory adjustment.