This place is ideal if you need easy access to the Prudential Center or Newark International Airport. Prudential Center is about a 7-min walk from the townhouse, and there's a bus stop within 5-min walking distance where you can catch the 62 bus, and you'll be at the airport in 5-min or so. If that's what you're looking for then this is a great place to stay.
My wife and I stayed in the Sapphire Room. The bed was comfy, and high which made it easy to get in and out. The bathroom had all the amenities/toiletries you could need like shampoo, conditioner, body wash, hand soap, lotion, a hair dryer, and towels. The water gets nice and hot. I'd give the water pressure an 8/10.
The interior design/decor is decent, but you won't be seeing it on Instagram any time soon.
If you're thinking of staying and using Newark Penn station as your transportation hub know that it is about a 17-min walk to the station, and that while I suppose you don't have to, I absolutely recommend taking an Uber back to the townhouse from Penn station at night because Newark isn't the safest of places.
If you're looking to stay in Newark this place is a solid 4/5. If you're looking to have fun in New York I'd recommend just spending the extra money, and finding a place in New York itself.