Hi Terdev,
I'm on the animas vibe and before that was on the 2012, been with animas now for 5 years and pumping for 7.5. I really like the animas, in fact I don't have any problems with it. My button started to stick but I just phoned up the company and got the pump replaced. I've always found the customer service really good and the pump for me is really easy to use. The drawbacks of it are though that it doesn't have a remote which means you have to get it out every time you want to do something with it, which may be annoying with a young child although doesn't bother me in the slightest I can do the audio bolus if its tucked somewhere secure. The thing someone else said about the screen it does easily scratch but the give you a rubber lens to glue over the top and they give you a rubber skin to protect it as well. Good points, it comes in nice bright colours and so do the skins, my pump is pink with a purple skin. it's waterproof which may not be that important now but is so handy going on holidays and doing fun things that last longer than an hour. the main selling point for me at the moment the waterproofness and now the CGM. the G4 is the most accurate sensor available on the market it also lasts for 7 days based on the manufacturer guidelines but a lot of people keep it on for longer and reattach sticky stuff. I would recommend the animas but then I've never been on the Medtronic but then it's not waterproof or got a cgm that's as accurate as the G4. There are some parents with younger kids on pumps on the parents bit of the forum, maybe worth an ask on there as well? They might be able to give you some tips on starting the pump as well.