Our old w210 had the premium sound system with the optional bose speakers and a cd changer, it sucked! the system that is, the speakers could not handle any bass at high volumes and was a real waste of money, we opted out of the HK this time as down here you have to order nav to get HK, and we dont use nav here, the stock is better than the bose on the last one, im really imressed, very powerful, havent had to raise the bass level past half and its well enough for me, put in mind that listen to alot of rap, so bass is key and trust me its enough, i also listen to alot of Sade and norah jones, sounds great on the stock, if your skipping the HK cause of complexity dont, its a very simple system to use and apparentyl sounds amazing but i woudlnt know. If as you said you want to listen to a bit of radio and the occasisional music, the standard is quite enough