I booked this hotel based on good reviews and location.
I booked a triple room for a week and paid in advance. Upon arrival, it turned out that they do not have a triple room available. After waiting for an hour and talking with the manager (he was not on site), we finally got a double room with an extra bed, pretty small, but at least we could get some rest.
The next day we moved to the triple room. Everything looked fine until around 3 am that I woke up due to the noise coming from the upper floor. We did not have good sleep and were tired the next day. I thought this was probably a one-night thing, so did not complain.
3rd night we woke again from the noise from the room upstairs. We could hear all their late-night activities, taking shower, etc. I talked to the front desk that night, they said they would move us to the upper floor in the morning.
Next morning, we packed and I went to the front desk to get the keys to the new room. There was a different guy there he said hotel is fully booked and there is nowhere else for us to go. At that point I had enough and decided to go to a different hotel.
I paid for a 7 night stay and left after 3 nights (no refund from the hotel). This should tell you how bad was our experience and you should definitely avoid this hotel at all costs. I am a heavy sleeper, if I could not sleep there lots of other people can’t either.
I hope this helps, avoid the Premist hotel and enjoy your time in beautiful Istanbul.