We have the SL10 model. I have no idea how similar ours is to the one you are looking at, but one thing we noticed right away was that the documentation that comes with a Haas machine (we bought a gantry machine at the same time) is poor.
Also, our lathe seems to break down quite regularily. Due to this, we have discovered that Haas' service is pretty good. They do seem to respond fairly quickly to get you back up and running.
Bottom line: If I was buying a CNC lathe for myself, I would look at some other makes.