The rule with Superstar seems to be don’t buy anything with bearings in, they will die very quickly!
having never been one to adhere to rules let me tell you their ISIS BBs is easily the best I’ve ever used, Race Face/FSA last no time (on DH bikes) before they’d have play in them, the Superstar one is solid and spun freely for a few years now (on a mini DH bike)
Haven’t used much else Superstar sell other than:
nanos – great shape/weight/price pedals albeit at the expense of slightly weaker axles than I’d like (they do have strong cage/bodies tho and replacement axles cost little and take minutes to switch over). Got HTs too which were even cheaper.
disc pads – no complaints with their various Sintered pads. been using them for years (pre, during and after the STW “OMG you wil die if you use SS pads era”). their Avid springs need bending to shape tho (common fault with many aftermarket pads)