Whether the product actually helps the user accomplish the job they came to do. Usefulness precedes every other dimension — nothing else matters if the job isn't done.
The affective response — would the user choose this again, recommend it, speak well of it. Sentiment-level, not task-level.
How effortful the experience felt in the moment. A product can be useful and still be punishing; ease separates the two.
Whether the product behaves predictably, tolerates error, and earns trust. Reliability is satisfaction's quiet floor — without it, every other gain erodes.
How quickly a first-time user becomes competent. The steepness of the learning curve is a design choice, not a user trait.
How much effort, time, and attention a task requires once the user is proficient. Efficiency compounds — small wins become daily wins.
Whether the user can find what they need, orient themselves, and recover position. Navigation is the architecture every other dimension rides on.
The help, guidance, and recovery the product offers when the user is stuck. Great support is felt as part of the product, not a separate channel.
Read: the user-felt side is strong on Usefulness and Reliability, but Ease is leaking — and the product-provided diagnosis points directly to weak Learning and Navigation. The fix is architectural, not cosmetic.