The guide to Trump Tower is filled with tons of useful tips like "Bring your suction cups!" and "Directions: spot the tower, ascend" the page also provides a detailed breakdown of the best route to take.
"Ascend the tower with your handy suctions cups. Watch for NYPD breaking windows to get you to stop. Start at the 5th floor and make your way up, by the time you hit the 10th floor a crowd will join and the NYPD would have put an airbag below you (Thus the R and not X rating)."
The comments on the route guide also provided plenty of helpful info. You can read all of them here.
"Crux for me was the cops at the 21st floor."
"Route favors those with small hands."
"Routes like this made climbing great again."
"Can't wait for the new bouldering wall they're installing on the southern border."
"The top out is the very best top out that there is. A lot of people have said that the top out can't get any better."
"Finding camping in the area is almost as worse as Boulder. Almost."
Needless to say, those looking for a day of climbing in the five boroughs should definitely stick to Brooklyn Boulders.