I got B&N around 9:45 and got my book signed about 1:45...so I spent 4 hours in line. At 9:45 the line was already wrapped 1/4 around the block with at least 100ppl.
LeBron arrived 10min early (shocking!) and according to the B&N employees he would sign for only 1.5 hours (up to 2pm). At this time I heard the line was already all the way to Madison Avenue so I am estimating about 200-300ppl in line.
Inside was strict, no memorabilia, no photos, no personalization. LeBron didn't even look up and say "Hi" or "Thanks" instead just talked to his homies at the table with him while he scribbled his L.J. signature. UDA was also there to put the hologram on the book with the certificate.
I'm not sure but I might have been the last group in since it was close to the 2pm cut off...as long as I got LeBron 5x on anything its worth the wait!