My parents have had Nissans since the day we moved to Canada in 1989....no major issues (outside of me writing one off as a teen!). We've had the 1989 Sentra, then Pathfinder, Pathfinder, Pathfinder, Rogue, Rogue, Rogue, Qashqai (being purchased tomorrow) and have been happy with them each time. No issues with dealers, no real issues with the cars (Pathfinders were thirsty pigs) and it's been a good experience overall. There was an issue where my mom said she wanted 'maintenance' done at the dealer and they did the oil, filters, brakes, and everything for $2k or so. All it took is about 30min with the service manager to show that she didn't have a signed quote and wanted just the oil change and they knocked the price down to $400 when I told them I wanted all the parts back that they took off.
Their current car is a 2012 Rogue with 56k on it, and we are mulling taking it over as our Hyundai is on it's last legs, and the jerky transmission is extremely worrisome right now...hoping it'll last but we need a decision soon....3 transmissions within 170k....
Overall my experience with Hyundai has been positive. The Genesis Coupe 3.8 was bulletproof with minor issues which were taken care of under warranty, and the Elantra Touring has been a great mover and car for my wife and her business. Tons of room, nice handling but the 4speed auto transmission was the weak point of the car. The manual would be better, but she doesn't drive manual so no go on that department.