Hi there. My son, Jude was diagnosed at 9 months. He began pumping at 1 1/2. He is on the Animas Ping because it has the smallest basal rate, which usually keeps him from having any significant lows. The problems we have had: an infected site because the inset has to go in his buttocks, it is impossible to keep it 100% clean all of the time since he wears a diaper; tubing that gets tanged on everything from toys to cabinet knobs, sometimes it pulls the inset out completely; he chewed the buttons off of his first pump while he was teething, luckily it was replaced for free; sometimes he tries to chew on the cord, out of boredom, I guess (lol); occassionally he falls down and his inset is dislodged or the cap comes off where the tubing hooks into the cartridge/pump and the strangest incident was when he spent the night at his grandmother's, where the dog sleeps in the bed with him and the DOG chewed through the tubing. UGH! I know! BUT...after telling you all of this negative stuff, I want to you to know that I am unbelieveably thankful for the pump. It has made our lives and his so much easier. No MDIs anymore! No carrying syringes and insulin in the diaper bag. All in all a wonderful experience. I would recommend it for sure. My son is now 2 1/2 and he is beginning to recognize that the pump is just another part of his daily wardrobe, just like his shoes! Best of luck. I'm here if you need any help. I am also on facebook and have a few other friends that have diabetic toddlers that could also give you some great input.