They don't always keep one number. There are 2 micros working in that condo, one in each building, not sure if they are same Booker.
You just have to watch for $200/hr ads saying west end, sometimes saying close to WEM. Then when you call, just ask if it's green condo. Original micro was building entrance facing west. Second building entrance face north. For the years I've gone there, best experience is original one facing west