I haven't owned a Fit, but I own a 2013 Ford Focus SE hatchback 5spd. I purchased it new in 2013.
It hasn't been a total POS, but it's not up to the normal quality standards of Toyota or Honda. It rattled from the start, though most of them were from the backseat latches. A bit of tape around the metal loop the catch hooks to solved that. The radiator needed replacing at around 45k miles. Did you know the radiator isn't part of the engine, isn't covered by the drivetrain warranty, and requires complete disassembly of the front end to replace? Neither did I. The Sync system is buggy (doesn't always respond to voice commands) and the mic is positioned where it picks up a lot of wind noise, making the hands-free feature all but useless. Gas mileage is well below expected and less than any other manual transmission 4cyl car I've owned (mid 20s around town, mid 30s on the highway). It needs a 6th gear for the highway as it's turning about 3k rpm at 65mph. The engine doesn't idle smooth at all and reminds me of a diesel.
Warts aside, it's fun to drive and peppy. I replaced the rear sway bar with a stiffer one, making it handle better, and installed a short shift kit to get rid of the shifter slop and vagueness. Better tires were installed when the factory ones wore out. It's fun, flingable, and has been reliable other than the few issues mentioned above. I wouldn't buy it again, but I'm not tempted to get rid of it either.
Chris