Have used them on another (non-BMW) car. Inexpensive and fit well, but tend to corrode in markets where salt is used in the winter (they're made in Malaysia).
I've had a set on order for my E92 for over eight months, but my UK supplier finds the Malaysian factory difficult to do business with. As I have an MSport which is fitted with quite good OEM bracing, I won't be that bothered if they never materialise...
E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; BMS clutch stop; BMS CDV; RE g/box mounts; Saikoumichi OCC; K&N; Cyba scoops; BA diff brace; BMW Perf Exhaust; M3 rear spoiler; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof