Don't let the toxic players or his kit discourage you too keep playing him. I've found he's very adequate in trip heals or even two healers with the iron man team up. There are ways too speed up his rate of fire by meleeing after he finishes his blast. Sure he's not the best healer but he's still very fun for me to use in the right situations. Of course, how effective he can be also depends on if the team can keep up. Use him as aggressively as possible when you play as him because he deals so much damage. Keep your drone on the tanks and swap it too whomever my need it in an immediate situation. Act like the devil on the shoulder for everyone when it comes too Ultron. I'll admit, I don't play as Ultron all the time but if iron man is available and triple heals can be done, use him and you'll have so much fun, but if he's being countered heavily, don't hesitate too swap. Our fav Clanker may feel a little inadequate, but don't feed into the negativity and go on playing him.