I have been meaning to write this up properly since the December exam. I sat the N3 beta on the platform alongside the actual JLPT N3 this month, so I have a reasonably direct comparison available. Some structured observations:
Reading section
The passages were notably practical — job postings, apartment listings, a transit schedule with exceptions, a short internal memo. As someone on a work visa in Jakarta this is genuinely useful content. The vocabulary and grammar required to parse these documents maps directly onto daily life in Japan, much more so than the more literary or abstract passages I have seen in N4 practice materials. This is a meaningful design choice and I think it is the right one.
Pacing felt accurate relative to the real exam. I finished with about four minutes to spare, which matched my experience on the actual JLPT.
Listening section
Audio quality is good overall — clear, natural speech rate. One issue worth flagging: two of the passages cut off slightly early, before the final option was fully read. I am not certain whether this was intentional (to simulate exam pressure) or a technical issue. Either way it is worth reviewing.
Scoring
The aggregate score is fine for a general sense of where you stand, but I would find it significantly more useful to have section-specific subscores — vocabulary/grammar, reading, and listening separately. The JLPT itself uses section scores for pass/fail determination and being able to track individual section performance over time would make the simulator much more valuable as a diagnostic tool.
Overall this is a solid beta. The practical-content approach distinguishes it from other simulators I have tried. The above are offered constructively — happy to provide more detail on any of these points.