i had my 520 since august. i logged 2600km (1500mi) since then just commuting to school and back. the bike can really hold the weight. everytihng is stock. (hoping the rear rack won't break) but due to a bad manuver of mine, i had to retire the bike for this season early. I was going around 30kph (20mph) and i saw a 1 inch rise in the pavement (like to titonic plates coliding eachother) and i disided to hop it. but i din't do it properly, i hit the apex of that rise with my rear wheel and damaged the rim. the the rum has a bump that is pretruding(sp) out, then i also got a flat. so now my mike is in the LBS.
I love the way the 520 rides, i think its very comfy. and for 1300CND it was a bargan.