First of all, J's location is absolutely impeccable. It's no more than a five-minute walk to Grove Street Path station and all the happenings of downtown Jersey City (eat, play or just people watching); less than ten minutes, you can walk to Exchange Place Path station and enjoy the amazing skyline of Manhattan / Statue of Liberty / Hudson River view. You really can't beat that on a warm summer night. By Path, you are only 5-15 minutes away to either downtown or midtown Manhattan. J's house is on a quiet street, so you can have a good night of rest without worrying about the late night crowd.
Exactly as J described, his house is a no-frill place for a solo guest. If you are looking for a luxury full-service experience, look elsewhere. However, a comfortable and home-feel place to rest after a day of work or sight-seeing is what you need, you would be really hard-pressed to find a better value than that of J's house.
My bedroom has ample closet / shelf / dresser spaces to store my items. The bed is comfortable, Wi-Fi is reliable, a desk and a chair for me to do work, a screen door leading to a small private deck and summer breeze. I shared a bathroom with another person, but it's tidy and fully functional (a cleaning lady comes periodically and everyone cleans after oneself).
What truly makes my stay a pleasant experience was the host J! He is an affable young man. I have lived in midtown Manhattan for the last twenty years and been to Jersey City numerous times. Still, J's excellent tips helped me in discovering gems in this fabulous, diverse and upcoming neighborhood. J lived in the house with his roommate - busy young professionals and this is their home. If you like to keep it to yourself, they will make sure your space/privacy is respected. When you feel like and everyone is not busy, J welcomes you to join them in the common area to watch a TV show, share a meal, or just chill and chat. It didn't feel you are staying in a hotel as a passer-by, but rather sharing the same roof with a couple of young professionals or even friends.
In short, J's place is a bargain at a fantastic location, nothing fancy but simple, clean, comfortable and drama-free. J is a great host and a very likable guy. He will be my first call next time I'm here.