Yes, Ektar is a very, very nice C41 film. It's grainless, which I usually consider an advantage for colour, super sharp, nicely saturated (I would be glad to post other examples if someone wanted to see more primary colours), much cheaper than E6 (in Canada, at any rate), easily printable the analog way (I'm too cheap to invest in Ilfochrome), and can render decent skin tones if needed.
In the Kodak line, Portra remains the king of detail and accuracy; Ektar is for expressive, more intense shots. I think it's the C41 film that many of us were waiting for. It's perfect for both enthusiasts and pros, is a great way to make high-impact pictures that don't look garish.
I haven't tried Ektar for portraits, but given that E100VS does a very nice job of giving decent, if not pitch-perfect skin tones, I'm not afraid that Ektar will handle skin well.