I've used it a number of times and prefer it when I can find a tradesman who is proficient in its use.

Plus side

* Much easier for the drywallers to get a straight even wall--especially as wood tends to twist in typically too humid basements;

* much neater and cleaner to work with than wood;

* an experienced installer can finish it much faster than wood. (One installer I used was so embarrassed by his speed versus his quote that he threw in the trimwork as well. Not everyone is so honest!)

Minus side

* sometimes a higher materials price than wood;

* maybe a bit more work for the electrician;

* you can't hang items from the steel studs.

As with wood framing, there should be protection below the baseplate to prevent contact with rising damp from the concrete. (Unlike wood, it doesn't rot. But it does rust and I've seen baseplates and the bottom of studs rusted totally away in old renos.) Typically, Codes require min. 6 mil poly; it comes in black rolls just for that purpose. Better yet, run strips of XPS under the baseplate. This further protects the framing from any minor flooding.