Having been a GW player for a great number of years I picked up this game, and Dust tactics, recently and had my first game of Warfare yesterday.
I was surprised how quick the game is to pick up and play, having read the rules through twice we were fully into the swing of things by turn 3. Learning points for me over my old game is that suppression is vital, being a new mechanic it wasn't evident how important until my jump infantry were left hanging in no mans land unable to react to get shot to piece's. Also it's not a one shot kill type game that the games of Dust tactics I had played seemed to be. Cover saves seemed, on reading through the rule book, to be alomost a waste of time only giving you one or two additional saves but in play they really made a big difference.
And last but not least don't let the gorillla's near your level 2 infantry,
Very much enjoyed the first game and looking forward to my next.