Design: Well it looks like they are using the XB1 design so that's a good thing.
Buttons: Things I like is the built in Mic and the Rumble Triggers which is necessary for FPS and Racing games these days.
Colour: Not a fan of the colour, however we know controllers will come out in colours in the future. But the lack of colour on the buttons and the 70% White and 30% Black just isn't doing it for me.
Price: This thing looks expensive.. people complaining about buying Play-and-Charge kits for the Xbox might be in for a surprise with the price of this controller. I see the Series X controller selling for around $50 to $60 where as I see this thing coming close to $70 to $90. But that's just speculation.