just had a look at that site and i love some of the braces they offer, all one piece designs so these should really make a difference, i wish they have incorporated the stock bolt locations for the firewall braces however as the unused pieces by the strut top look messy.
i may even try the rear strut brace although from the pic i can't see how this mounts to the car, and the rear lower brace, that looks like a very nice piece actually, it must be stronger than the stock one as its all linked and one piece as apposed to the separate bars of the stock unit.