Went to Space Plus at RCA recently on my recent trip for recon since its kinda of a new toilet thingy.
It's the latest hotspot dance club other than topone positioning itself as hiso atas place. Anyways, they have minimum entry package of 15k or 16k baht ( cant remember exact amount ). The package consists of 2 bottles of sparkling wine + 1 bottle of gold label. CC payment additional 5 %.. bloody expensive if i may say so. And they dont even sell beer... bugger.
The only plus side is that they have PR's for rent. 6k baht for 3 hours

Girl quality just comparable to the G Clubs around bkk.
IMO, expensive place but could be good place to bring your own girls for party as it is less crowded. Table to Table space is appx 1.5 meters so not very convenient to yamseng with next table's sao sao.