Right now the biggest value nReduce has provided my startup has been motivation--7 weeks in a row I've shipped new features or improvements to my startup (http://Thetaboard.com).
Coming up fast (and soon to eclipse) in importance is the virtual feedback/community the program provides. The weekly advice on specific items and general conversations about direction/business model/strategy is awesome.
I'm in Ireland but booking a ticket tomorrow to visit the nReduce team and my nReduce group members in Manchester next month. Anyway, the program is evolving and I think may end up being a real bonus for young/aspiring startups.