It's a hard one to rate. The bed was comfy, everywhere was clean and so were the linens; there was a bath with shower, which worked fine; there were nice toiletries, in eco-friendly refillable bottles; there was a safe and (joy!) a fridge. The lighting was reasonable and there were decent mirrors and, very unusually, there was a decent amount of surface space in the bathroom.
On the other hand, the room was a very awkward shape and the space there had not been best used. To get from the far side of bed to the door or bathroom you had to squeeze past a desk and avoid breaking a toe on the chair which was a bit too big for the desk so stood by the wardrobe. The wardrobe was very shallow (too small for a cabin bag to be put in out of the way), and the safety tethers on two of the windows were broken.
At about 6:30 on our second morning, we were jerked awake by the smoke/gas alarm going off. No trace of smoke or steam and even in the relaxation of sleep I don't think either or both of us could release enough gas to trigger an alarm! Most concerningly, the front desk seemed to have no record of an alarm going off.
So we had a pleasant stay overall and managed the spatial challenges OK. But if it had been part of a longer trip, meaning one or two large cases - or if we had been larger people - it would have been a different story. The price was reasonable for what we got so it merits 4 stars, but be aware of the challenges as well.