Here are a few discussions on FrSky FASST compatibles (one of which is this thread). The reports have been good.
FrSky FASST Compatible Receivers
FrSky FASST Compatibles
Orange Brand (FrSky) FASST Compatible
FrSky FASST compatible Receivers
Note that FrSky also has its own 2.4 system so when you read FrSky reports you need to confirm whether they are talking about FrSky receivers with FrSky module or FrSky with Futaba FASST. Not the same. BUT, all are getting good reports.