As far as I've seen from screenshots and forum posts, it seems to work alright. Two complaints I thought of already, though these are based on my thinking about the update rather than actually playing it.
[*]It says you can melee and range from horse back, but it doesn't mention spell casting. I would understand not being able to do the master level fire and ice spells, maybe even the master lighting one, but this kind of sucks.
[*]How often will you use it? I actually ride horses all the time and the ability to attack while on the horse instead of having to dismount is actually appealing to me, but I recognize a lot of players don't bother with them.
[/list]And I have one question for anybody who plays on Steam. When something attacks you, does it attack you directly, the horse until it dies and you are forced to dismount, or both depending on where they hit or decide to do?
Screenshots of the action.