This was a good Air BnB if you want a relatively cheap jumping off point to NYC. The PATH station was a little confusing to figure out and it still takes about 25-30 minutes to head to NYC, but if the commute to and from the city (not including traffic, etc) isn't a huge issue, this place should be fine.
The house itself was probably big enough for 4 people (max) to be comfortable. The bedrooms are connected so there isn't a ton of privacy (if you have a couple with you, for example) but the rest of the house was great, and had just about everything we needed.
The area around the airBnB is pretty safe, although Newark as a city can be a bit sketchy and run down in some areas (especially by the PATH station) so be wary at night and traveling alone. It is near a Walgreens which is convenient, and the restaurants in the area seem pretty lively and popular, although we didn't check them out.
Overall, if you're looking for a cheaper option to jump off to NYC, don't mind the longer commute to and from the city (not being able to really go back to the AirBnB to recharge after a day of exploring before hitting nightlife, for example), and a smaller place fit for a group of 3-4, this is a very solid option.