I put a deposit down on one of these as a fun car subject to test drive and unlike the TCR which is a bit of a fraudulent link to the race car, GR have actually done a huge amount of bespoke development for it. It was due to be in dealerships in August but I suspect that will be pushed out. Build quality won't be GTI - it has a gas strut on the bonnet unlike the MKVIII

I jest but it's about driver engagement and fun. Think they've done a good job on the styling. It has a manual hand brake which is cause for celebration in itself but they've put the battery in the boot to aid weight distribution so I wonder how compromised it will be as a road car if that's any indication.
There are only two spec options in the UK, if you want the 2 LSDs and all the GR features, you need to buy the circuit version. Japan has a lot more choice in terms of specifications including HUD and so on.
For a three cylinder engine, it sounds pretty good:
https://youtu.be/ORwTblU4BK8?t=11