I haven't tried playing multiplayer yet, so I've only fought dumb bots, but I like the feel of these guys. Not sure how they will play against a good opponent though.
I like the favors...each has a unique feel to it. Overall, I think favors is one of the areas that the devs need to look at revamping. Some are ridiculously powerful, some useless. I think the favors should mainly buff a unit's performance....speed/stealth/detection/cooldown/range etc. I'm not a big fan of favors that let you do powerful attacks from afar...except I do like the railgun. It's not point and click dead, more skill involved in aiming.