I found the cigarette lighter socket quite poor and searched for a better solution. One other option, especially for a lot more amps are UPS plugs, which are also used in offroad-vehicles. For me they would be overkill.
For those who are interested:
They do exist with rating more than 150A. Disadvantage in any case: there doesn't exist any panel jack, so it has to be build by myself.
So how about those XT90 connectors, do you like them? What are you guys using to distribute power in the van?