This Sextant apartment was exactly as pictured in the listing.
We first arrived on a Friday night and a beeping Smoke Alarm greeted us, low on battery. High up on the ceiling, we couldn't reach it to change the battery. As it was after the "maintenance hours" on a Friday, they were unable to fix it that night (wow, it was loud... it prevented us from sleeping).
Sextant eventually moved us into a different unit for the night. Their customer service was very responsive, even at 2AM on a Saturday morning. This whole event was inconvenient to say the least. Sextant accommodated us with a steep discount for our first night to offset this issue.
Despite the smoke alarm situation, I would consider staying with Sextant Stays again. Hotel-level "support"/"services" are rare at an Airbnb. That support system is invaluable when you're trying to enjoy your vacation.