A star count tells you almost nothing on its own; what helps is reading reviews as evidence of fit. Before a Bosphorus cruise, the comments worth your time are the concrete ones — did boarding make sense, did the crew keep people informed, did the food match the tier the guest actually paid for, where did they sit, was the pickup on time, and was the trip the kind of evening they were hoping for in the first place.
The trap is reading every review by the same yardstick. A sunset review, a dinner review and a private-yacht review are answering three different questions, and a five-star sunset comment tells you little about whether the dinner cruise will suit you.




