The helmets he had were very impressive. Two must haves for the hunter and warlock. Both of the helmets have the very sought after ability of replenishing health when picking up an orb that gets generated from other players. This helps out tremendously when trying to do Crota's End on hard mode since you can't regenerate health like normal.
Even the weapon is pretty good this week. It's one of the less common weapons in the game so a lot of collectors were very happy. Bungie has been updating his stock so we have been seeing a a nice variety of weapons and armor here lately. There have been many people predicting Xur's stock because they have figured out his sequence so Bungie had to update it. I'm still waiting for the thunderlord, an exotic machine gun, because it's the last weapon I need to complete my collection. I don't know what I'm going to do as soon as I get the thunderlord because I have everything else I need in the game. I guess i'll just have to wait for the new DLC to come out.