I don't understand how a brand can get a rep for fitting well or poorly. If it's not custom made, the manufacturer has to design for a model. To the extent you're like the model they chose, the clothes will fit well. To the extent you're unlike the model, they won't fit well. Of course, with the materials that are used in cycling clothes, it's easier to find a good fit than if the clothes were made with, say, pure cotton, but logic seems to say:

the fact that brand N fits or doesn't fit one poster says very little, if anything, about how the brand will fit another rider.