I've been searchin for good (and cheap) character compressor recently. For that, one must demo a lot of stuff. :D Density didn't fall into that category that much, but it sounds amazing even compared to stuff I demoed and I'm kind of sad it has no reviews. :)

It's not a pure model. Demoing OldTimer you get much more of character. But Density makes it's own magic in it's own way. Sometime, especially where you have lot's of creative distortion, I can imagine, character compression could oversaturate your material. But what if you want it pop up a bit anyway? That's exactly what's Density amazing for. It really feels like some combination of analog model and DSP.

Density brings interesting "clearifying colour" to your material. It's not saturation, it ... "something" and it sounds great.

Can't it explain really as I'm a bit newbie to "out of DAW compressor" compression. :D But it's free so nothing stops you from trying yourself. PS: If you need some saturation anyway, look at Tesla, another magic plugin by this developer. :)