I have an older Hagie 2012. Got to test drive a 2014 earlier this year. Love the new cab and how they rerouted the hydraulic hoses to the wheels. They increased power with the Tier 4 engines, but I've never felt like I was short on power before. I've had a few small problems with mine, (o-ring here and there, sensor went bad) Nothing big.
I've heard some people complain about service, but I haven't had any issues. My biggest complaint for my machine was the hoses going to the wheel motors, but like I said, looks like they fixed that now. Mine rub against the catwalk and will eventually cause a problem.
Overall I like mine.