Had my SGS five years now and it hasn't missed a beat. Great for the money and occasional usage. Make sure you buy some jacking pads too (as well as the BMW-specific ones, a hockey puck, turned and grooved on a drill or lathe, makes a great all-purpose pad).
Wouldn't hesitate to spend >£100 on a proper low profile, long armed aluminium jack in the future though.
Wouldn't hesitate to spend >£100 on a proper low profile, long armed aluminium jack in the future though.