I decided to stop by Ajisen (14 Mott st betw Chatam Sq and Pell) since i'm in Chinatown all the time. The topic of Ramen has been discussed recently and i thought i would try it. Before I give my opinion let me just say that i haven't tried any other places in NY but just about two months ago i was in Tokyo and hit up a couple places there.
Now i had the Chashu-men (#3) and an order of Gyoza. the gyoza was nothing spectacular but i liked it since it wasn't too oily. The Ramen was good. Wasn't as good as Tokyo but for the price $6.50 its a lot cheaper than traveling to Tokyo. Based on previous posters (Aki, i believe) noodles were mentioned as an important aspect. this is one area where it was good but couldn't compare to Tokyo. Another aspect that i was surprised with was the Chashu (roast pork). I'm 100% sure this place is owned by chinese people (overheard most of the staff) and roast pork is pretty common in chinatown so they should be able to get better meat. It wasn't quite as tender as i thought it would be.
But worth a try and next will be Men Kui Tei by Wall st.