Most other reviewers have covered the highlights, but just to reiterate some of the highlights: Alexandra is super communicative and made check in super easy. I didn’t meet her in person, but she checked in via message regularly and would be easy to contact if anything was needed. The place is very close to Newark airport (~$6-7 Lyft) and it’s very convenient for an overnight stay. Your room is labeled for you on a whiteboard (there are three rooms she rents out) and every room has its own keypad door lock, so it feels very safe and secure. She has a list of things (WiFi password, house rules, things nearby, etc.) posted up for guests which is really sweet.
It seems like her place is very popular for the value and you will likely have other people renting the other two rooms on that floor (at least, this was the case when I stayed on a weeknight), so just keep in mind that there is one bathroom that will likely be shared between multiple guests. If using the shower etc. is something that might be time sensitive, you might want to make sure you work that out in advance. The noise level also depends on when other people are coming in and out, so just keep that in mind as well.