This studio is in Inwood, which is located at the northernmost tip of Manhattan. While it may seem far from midtown/other touristy places, the A and 1 trains both serve the area and will reliably get you to where you want to go at any time. I lived in New York for four years and can confirm that Inwood is generally a safe area, and the location of this studio in particular is well-lit and a short walk from the nearest subway station. Walking back late at night, I did not feel uncomfortable or unsafe.
The only thing I will say is that this studio does not have a full kitchen, only a bar fridge. If this is a problem for you, you shouldn’t stay here, but there is no shortage of dining options in the area. Thus, cooking is absolutely unnecessary during your stay.
I recommend this place wholeheartedly; it’s a great deal for the price.