Interior on the Cup is "functional", nothing to write home about but build quality seems up there with an Astra VXR and a Focus ST i've had (actually that had quite bad build quality/finish!) but it a bit too early too really tell.
Electrics are fine.....my wife has an 07 Scenic and thats been fine the 3.5 years we have had it, no problems what so ever in 30k miles.
Build is supposedly quite a lot better than the 172/182 era cars and even an improvement over the 197.
Its all standard (spoiler is an option) apart from clear indicator bulbs front and rear, stubby aerial (stock longer aerial hits the spoiler when you open the boot!), proper carbon fibre end plates on the spoiler (stock are plastic with "carbon effect weave"), debadged "Clio" from bootlid, black Renault badge covers and Heko wind deflectors.