You'll be living in a full flat: there's a kitchen, a shower, a washing machine and a dishwasher, but you'll have to buy the powder or tablets by yourselves.
The heating in apartment is good, they use a gas burner. The internet is OK, but sometimes the router should be restarted. There can be water outages, that last until evening.
This flat is on the top floor, and there's no elevator. You'll climb 3½ floors up a spiral staircase to reach the apartment - check if you're in a good physical shape for that.
There are small shops on the same street, where You'll find recently baked bread and fruits. Istiklal is in 3 minutes walk, if you need to get there.