A great apartment in the middle of Gamla Stan. I stayed here for a month in Nov-Dec and had a wonderful visit. Highlights below -
Pros: LOCATION (can't be beat), lots of space in the apartment, code access (no lost keys)
Cons: The couch uncomfortable (cushions slide out constantly), kitchen is very spartan if you enjoy cooking, lots of street noise on the weekends.
All-in-all I would definitely recommend this stay for short term visitors to Stockholm. You'll be in the middle of the funnest area with super easy access to everything else. Specifically, I say short term because if you plan on eating out, spending most of your time walking around and not much time lounging, watching tv, cooking, etc then this will be amazing for you. For the other (long-terms like me) you might find that you'd wish for a few more creature comforts, but nothing to ruin a stay. For example, I unfortunately ended up getting sick during my last week (not COVID thank goodness) and spent 4 days inside and I cannot explain to you how much I hate the couch now. Every 30 minutes you have to push the cushions back in. Also, when staying for so long you'll likely start cooking for yourself and the kitchen just isn't set up for much other than very simple meals. However, when I wasn't sick I got a gym membership and was a quick 5 minute walk away and was surrounded by great bars, restaurants and shops. 4/5 for the reasons I mention above, but with a better couch, more kitchenware and some tiny tweaks I would say you'd hard pressed to find a better spot.