you can assign skills (dirty trick etc) to the dpad and pull the left trigger to activate - which does add some tactical ability to combat. Although that does little to improve the game.
There's also glitched achievements (Visited all undergrounds, Visited all locations) which cannot be completed (hopefully fixed in the next patch for those that can be bothered playing it)
Horse Riding is very annoying (the horse will go where it wants sometimes not necessarily the direction you want (hey, perhaps it is lifelike after all))
Some of the skills are pointless, the Unhorse Strike skill is particularly useless as there are no mounted enemies in the game.
Double weapons are not as good as single weapon and shield (double weapon doesn't do any more damage or give you better reach and you get better buffs from a shield).
For those that have got the game I found a good userguide
here
If you really want to give it a go I suggest renting it first.