Read some of the threads on here about Van Ness--first from before the boundaries were published and lots of parents were adamant that the boundary should be very small and only include the Navy Yard neighborhood (so all the public housing residents stayed zoned for Amidon) and then from as recently as this month where some people are very adamant that whether it's a good school depends on either the percentage of in-bounds kids (by which they imply just from the SE side of the boundary) or kids who don't qualify for FARMS.
Also check out
http://greatergreatereducation.org/post/23170/capitol-riverfront-parents-organize-to-reopen-a-closed-dcps-school/ where one VNPG member "didn't even apply to Amidon-Bowen, her zoned school, because someone told her it was dangerous. (She admits she didn't have time to do much research.)" While Amidon-Bowen doesn't have great test scores, I definitely wouldn't describe it as dangerous, I wouldn't rely on rumor or have my recounting of rumors published online, and I would take the time to do some research on where my 3 year old was going to spend 40+ hours a week without me.
Van Ness may turn out to be a nice school with good test scores. It will have a modernized building and no older kids to start out with. But it's also a school where many of the most involved prospective families are quite vocal about wanting to attract kids from Capitol Riverfront and from schools with in-bounds PK3 waitlists (Brent and Maury, for example) and not low-income kids.