Moving to Princeton - suggest few apartments and schools

Friends, we are planning to move to Princeton in 2 weeks, for work in ETS. Is there any public commute available to ETS or close by?

please suggest few options for good schools for elementary with good rating and good Indian community. we don't have car so initially ( planning to get in a month or two) need some suggestion on commute to office and near by grocery as well.

I checked out plainsboro elementary schools, but they are showing as NR in Great schools listing. Can we commute to these schools from plainsboro apartments by walk ?

Schools in princeton like riverside, community park etc seems to have good rating,but not able to find any reasonable apartments close by.

If you are from one of these places, please reply, looking forward to getting some good friends in the new place.