Hi Mao.
Brilliant job with the install and allignment of the R5-C's mate, damper and spring rate feels good. It handles so much better when the roads get twisty, noticeably less body roll even without anti-roll bars etc. It is firm enough to feel the surface of the road, whilst still being comfortable when cruising. Looks a million times better also!
These STD Coilovers are such good value and are just as good, maybe even better than much more expensive brands.
I Strongly recommend going through Evo-R for your Coilovers, they know there stuff.
WRX sitting how it should.