I agree with Miguel. I also like them which is a surprise for me as they aren't the kind of lens I would normally go for.
Miguel says the colour rendition is normal, and some people might describe them as colour accurate or realistic. I tend to think of them as being a bit more Pastel and colour soft than other lenses but then I usually like lenses with more dramatic colours but I feel that these lenses make a good contrast to the usual ones. A lot of people talk about the Cooke look etc and these lenses have less of a "look" but at the same time I do think there is something positive about them as I much prefer them over a lot of other low cost lenses. I would take these over a set of Zeiss CP2 anyday for example as I really dislike those lenses and there are a lot of cheap stills lenses that are just quite boring in the way they look too but I like these Cine Alta lenses.
However, as has already implied, avoid the first edition lenses that were once bundled with the Sony F3. They are made from plastic and have a much shorter focus throw and are generally quite poor in a lot of ways.
The new lenses are longer throw and metal and stuff.
I wrote an article about this stuff but ironically it got truncated and we lost the stuff on the Cine Alta stuff so I'm presently trying to retool it into a new article.