I find that the earlier versions are nicer too. Also the Helios is usually better built than the East German Biotars, which suffer from stiff focussing and hazing of the elements.
Funny how most people dismiss the Soviet lenses, and true the odd one is crap, but most of the ones that I have used are surprisingly good. The Helios is one example, and the humble Industars that you find on the Feds and Zorkis are a surprise packet as well