It's difficult to explain, but all the musicians signed to Valerie and affiliated with the label have a distinctive nostalgic 80's sound but with more of an emphasis on a harder sound than a lot of the original 80's disco tunes.
Prominent producers include The Outrunners, Russ Chimes, College, Anoraak, Maethelvin, Minitel Rose, Future Cop!, Diese, Cécile, NightWaves, Xinobi, Moulinex, Keenhouse, Illapa etc.
I'll try not to overload posts with too many youtube links.
Here's a selection of tracks and a pretty big playlist of tracks:
Listening to some of the tracks you've posted, I got to think of The Tough Alliance from Gothenburg in Sweden.. they're one of my own personal favorite groups. If you don't know them, you should check out their album A New Chance, very catchy and 80'ish with a great deal of nostalgia and references to sex, drugs and violence