La pro nails across from Dillons are the best. Competitive pricing and the family that runs it are the nicest people ever. I used to go to the one in the mall but now that I have found la pro I would never switch back.
KC nails on Washington street in JC is the best. Full set should be about $30 for french tip. They do an awesome job. I went to LA Pro nails for years and years. I like tht they get you in quick with walkins and they are friendly but I Jst got tired of my nails breaking all the time whn they were still new or Jst got done. So tried out KC nails. So glad I switched, KC nails are so much better in my opinion. I've never made an appt there, always walkin in and never wait for more than five minutes. They do a better job in my opinion, they last longer and I like the people there too. If you are into nail art or design they do free hand paint also which looks much better than air brush. Last I checked LA Pro nails only did air brush. I've never been anywhere in mahattan for nails so can't help there.