My personal experience with Dominator is that of Alpengeist, really.(That's not to say they're the same, in fact I prefer Alpengeist, honestly) The front is smooth and the back is rough, but unlike Alpengeist, the back delivers the better experience, which really forces me to sit in the roughest area.
The ride experience, I've thought is highly overrated. There are some nice twists to it, but it is more of the same the whole ride. There's really nothing but positive g's on you basically the entire ride and really, I prefer my coasters to have a fairly even mix. And the inversions are nothing special, they're copy cats of all B&M's typical inversions, in a much less interesting layout than most. If they threw in a diving loop or something unique in the least, it would have made the ride 100 times better. But really all I can say is that Dominator is a generic, boring, and rough parking lot B&M. Never have loved it, probably never will.
*Braces self for more eggs than Nicole will probably get*