I would say that they are both good, being FIA approved.

My cage is a Safety Devices, but for a Saph, so that the rear hoop sits further forward so that i can still use my seatbelts. Mine is also an older one which is proper bolt together. My mate has a new one in his 500, and he's had to ditch the seatbelts and sun visors, where i haven't . The new ones also fit together using sleeves with a bolt thro' which imo looks a bit heath robinson


Cheers Jonno