This place is amazing! It's right in the middle of gamla stan, really close to lots of touristy spots and great restaurants. The central train station is also in walking distance and there is a subway station even closer by. There are also two (small) supermarkets within walking distance.
The communication was very professional and quick.
The kitchen contains a fridge, a dishwasher, plenty of dishes, a kettle, a microwave, and one stove-top-type thing (for one pan or pot). You won't be able to cook complex meals here, but it's enough if you're mostly eating out or make very simple things. The only thing I was missing was a coffee maker. There was instant coffee, but if you care about coffee, you should be aware.
One other thing to mention is that you will need a smartphone to operate the locks. You can get a manual key, but this will cost extra. I assume for most people this isn't an issue, but if you don't have a smart phone, this is important to know.