There's only two Courtyards I stay at with some regularity. Not my first choice due to the property style/location, BUT they're usually cheap and clean, and both of these have great staff.

I've not encountered a problem using the F&B credit towards Breakfast at these. Even better is booking these properties with a rate which includes breakfast, so my Plat benefit goes towards evening drinks/snacks/dinner. Overall, the CY breakfast offering tends to be a bit better than the FI/SHS/TP/RI offerings.