Forbes labeled the Fiesta as 1 of 13 new cars to avoid buying. They complained about dependability, rear seat room, and feel it is overpriced.
http://www3.forbes.com/business/13-new-cars-to-avoid-for-2016/7/
Not sure why they are complaining about the ST being costly. When you compare the power-to-$ ratio to other vehicles (don't forget to include vehicle weight too), the ST is a bargain. Rear passenger leg room might be a valid complaint if both the driver and front passenger are taller than 6 feet and need to extend the front seats back as far as they go. I only have 4,300 miles on my FiST so I can't speak much for dependability but I can say I've not had a single issue with it since taking delivery back in September.
http://www3.forbes.com/business/13-new-cars-to-avoid-for-2016/7/
Forbes.com said:
Like many subcompacts, Ford’s smallest car tends to compete with larger late-model used cars on price, and doesn’t necessarily succeed in that regard. With an overall score of 44 and a dismal reliability rating of minus-267, Consumer Reports thought the Fiesta sedan/hatchback felt substantial, with good fuel economy and ride and handling qualities, but found the car to overpriced, with very tight rear seat room, and featured poorly designed controls; it also found the available three-cylinder engine to be lacking. (The sporty ST version fares better, but is costly.) It scored below average in the JD Power Dependability study, and is expected to hold onto just 44% of its original value after three years and 29% after five years.