I think a man should have a man cave...It represents reaching a certain echelon in life.
You can't have a setup like that or any other man cave type shit in a 1 bedroom apartment. You need a house.
A house = you at least have your shit somewhat in order.
That being said, the cave is severely lacking. No posters or framed HD pics of F1 cars or antique beer/oil can signs. No framed nudie posters of any kind. Walls need painted a warm dark color for atmosphere.
It's bland and utilitarian, a gaming hideout, for that it serves it purpose. But could be SO much better.
If it's a separate room behind closed doors, don't show a 8-10/10 the room...unless she is a very rare type. However you could pull plenty of Comic-Con type snatch to that room and it would actually be a selling point to further the penetration efforts...