I commuted for the first time today (2 days after getting my bike). It felt a little longer than I expected, but once I reached the office, I noticed that I made pretty good time.. roughly equivalent to the time it took me to take the subway to work. I rode 2nd ave all the way down to Houston, then down Broadway and finished at the bottom of Wall. This first ride was great.. I found a few spots where I could speed up (I accidently ended up in the turning lanes like 4 times, which I now know to avoid). And Broadway was the worst of them all, until ALL the traffic stopped moving except me!!
Took about 45 minutes or so. Once I build up some more endurance, hopefully I can do it ~30.