Most claim about the same range. Usually they are 15dbm output with about a
2dbi antenna. I would look for one with a higher output or external antenna capability. I have a linksys wap54g and get excellent coverage throughout my 1700 sq foot. At about 50 foot from the access point I start to drop from 54 to 48 or 36. Still not bad. Plus you can add higher gain antennas (sold by linksys also). Not sure if the netgear you had has diversity antennas but this certainly helps too for multipath.