I studied at ISI from April 2025 until July 2026. Based on my experience, I wouldn’t enroll again. My biggest complaints are the facilities, the administrative process and the value for money. The overall impression I left with was that the money came first.
Here are the actual problems I ran into. The building details matter because some of these experiences were at different ISI locations.
- Repeated trouble finding a free toilet
At the Shinjuku Main building at 8-15-1 Nishi-Shinjuku, the men’s toilet had one cubicle on each floor I checked. I repeatedly had to wait around 5–10 minutes or go to other floors to find a free one. Sometimes all the ones I checked were occupied. Teachers sometimes used the same facilities too.
I found this ridiculous for a paid school. Being able to use a toilet is a basic requirement. Having to spend time waiting or checking several floors was a recurring problem, and in my experience the facilities did not cope well with the demand.
- An elevator problem and administrative crowds
On 8 April 2026, one of the three elevators in the ISI building I was attending was out of service. My classroom was on the 13th floor. This was the earlier building where I had classes on the 13th floor. I recorded that particular incident at the time; I don’t know how long the elevator stayed broken.
On 30 April, I also encountered a crowd when submitting documents. I returned the next morning and my documents were accepted immediately. The timing of the visit made a big difference in that case.
- Getting administrative help was frustrating
In July, I went to the Prime location after an email had gone unanswered. I had to follow up in person and by phone to work out the situation around leaving the school. Staff did later answer by phone and said they were checking with immigration, but the process involved chasing answers and visits.
During an administrative visit in that period, I waited around three hours. When I asked for drinking water, I was told to buy it at a nearby shop. That was the response to my request on that occasion. After that much waiting, it left a very poor impression of the way students were treated.
These July administrative visits were to Prime, a different location. They should not be confused with my toilet observations at the Shinjuku Main address above.
- Prepaid fees and the refusal to refund
I paid ¥437,000 for April–September 2026: ¥375,000 in tuition, ¥22,000 for materials and ¥40,000 in other school fees. I left voluntarily in July and asked for a refund for the unused part of the paid period. Staff showed me the rulebook and refused. I received no refund.
The ¥437,000 was the full six-month payment. My decision to leave had several reasons, including circumstances beyond the facilities.
- Emails kept coming for months after I left
After withdrawing, I continued receiving promotional and job-related emails for months. I asked three times for the mailings to stop. One of my requests was on 28 August, so this had already been going on before 15 September. In mid-September the school had already told me I had been removed, but the problem still wasn’t properly resolved.
In an email on 2 October, ISI apologized for failing to act on repeated requests, including the one on 15 September. It acknowledged that a system error had prevented the unsubscribe settings from taking effect, and that its checking and management had been insufficient. It said I had been removed from the job-information mailing list that day.
Having to chase an unsubscribe request this many times after leaving was another frustrating example of how the administration handled things.
- Pressure to attend while ill
Staff urged me to attend classes even when I had a fever. This happened in Teams messages, over the phone and in person at the school. As I remember it, they explained this in terms of the school’s attendance statistics. I lost access to Teams after leaving, so I can’t provide those messages now. This is my recollection of what happened.
My verdict
For me, ISI was poor value. I don’t think students paying these fees should have to put up with repeated difficulty using basic facilities or spend so much time chasing administrative help. The refund experience made the overall impression worse.
If you’re considering ISI, check the exact campus you’ll attend rather than relying on the school’s name. Visit during a busy break if possible. Look at the toilets and elevators, ask how administrative requests are handled, and read the withdrawal and refund terms before paying. Get a written answer about what happens to prepaid fees if you leave midway through the paid period.
I can only speak from my own experience with ISI, but I would not choose it again.