they look nice! i'm not sure about the quality of arospeed, since i have no experience w/their products. as for the size.... only u can answer that. u have to ask urself questions like; wut kinda driving do u do... hard or just cruising? if u drive hard, 15s or 16s is prob the biggest u wanna go cuz tires like kumho mx n falken azenis only offer road racing tires in those sizes for ur car. but if u mostly cruise, those 18s sure look purrrrrdy!! do u live or often drive in areas w/lots n i mean LOTS of potholes? if yes, 15s or 16s will be better. i'm not saying u won't bend a rim using 16s, i'm just saying chances r far worst w/18s. if u highway lots, those 18s sure looks purrrrrrrdy!! many things come into factor here. other ppl here will tell u the samething. but it all comes down to wut suits ur needs?