My wife bought me one for our anniversary last year. I use it for just about everything... It goes through steel tubing like it's butter.
The blade is hard to see with the big guard in the way which makes it hard to follow a cut line with any precision. I use it mainly for rough cuts to get stuff to a manageable size for the bandsaw. It does have a wide kerf and it makes some big chips but it will cut through anything and I like it!
I picked up a motorless Ryobi miter saw with the intentions of adapting the Twin Cutter to it. This would make a nice chatter-free cut-off saw if I get it finished...