North Jakarta and South Jakarta
On my recent trip to Jakarta after having made 5 or 6 trips over the last 5 years I came to the following conclusion which I think is a good rule of thumb for anyone planning a Jakarta trip.
Blok M and all of the Hotel Nightclubs are for people passing through that don't want to go out of their comfort zone and want some expensive female companionship in familiar surroundings without having to go out of their way. Travelling businessmen, people passing passing through for the night and so on. For the true enthusiast you will not find any of this interesting at all.
The true enthusiast should stay in North jakarta and focus on the clubs and esteblishments there, namely Hotel Travel and Hotel Classic and I personally think Stadium nightclub is well worth a look just for the spectacle of it. Also laced in with all that is places like Berlian and so on.
True enthusiats should stay at the Mercure (I think it is that one) and just spend a couple of days in that North Jakarta area and don't waste your time on the over priced "touristy" type places elsewhere.
Just my 2 cents worth!