I've had mine for about 2,500 miles. It is a joy to drive - I really have no complains in that department. My only issues are:
1) Infotainment System black screen. Very annoying and Mazda doesn't seem to care about it. I just saw on another forum from people who installed V59, the black screen it is still happening. This is just simply unacceptable. I would be embarrassed to put out a software like that. I get it. It's software and bugs happen, but f*ing fix it and do it fast. Don't screw your customers. It's been several months. WTF are they doing? Shouldn't be this difficult to solve really -- if they gave a crap.
2) The padding on the driver's side door (elbow rest) is meh... there's already a spot where the padding is gone and my elbow fits there nicely. It's not uncomfortable, but it just feels cheaply made, like you couldn't add a few more mms of padding?
3) These are things I wish it had: Front parking sensors, Power folding mirrors, hands-free tail-gate,
4) Reviews say it's quiet - For more, starting at 55mph and getting worse at over 70mph, I hear road noise (which is probably normal) and also forced wind noise, which is annoying if you don't have the stereo on (say b/c the screen went black).
In summary: Do I regret my purchase: No. Would I purchase it again? Maybe. 1st time Mazda owner and Mazda is leaving a bad taste in my mouth with this update BS. I would probably wait and see what issues come up next time. You do get a good value for your money though - this is the best in its class. Next up are the luxury models.