Don’t normally review bus tours but felt needed to on this occasion, mainly as standard differed so much:
Downtown red loop - guides great, really informative and knowledgeable.
Statue of Liberty cruise - great trip, informative and interesting.
Downtown red loop/Brooklyn - guide kept missing landmarks, felt like we were looking back over our shoulders all the time. Brooklyn guide was good but not much to see other than the Manhattan skyline.
Harlem - interesting and informative, good tour guide.
Uptown blue loop - guide was useless (blond bloke), think he was auditioning for a game show. Made sarcastic comments as we left about a tip, he was hopeless.
Would still recommend these bus trips as you get to see main sights and then work out where you want to go but the differing levels of knowledge by guides can affect your experience.