Tanisha's apartment and location were fine, however, at no point during our stay did we have a working key to the main front door. Each day Tanisha worked to have the situation resolved but was never able to.
She gave two suggestions to allow us to be able to access the building without the fob, the first was to prop the door open so that it would be open. She informed us that she let her neighbors know what the situation was, however, each time we returned to the unit after propping it open, a neighbor had closed the door. The second solution was for us to use the intercom system to ring the neighbor so they could open the door for us. Multiple times when we returned to the unit to freshen up after a day out prior to dinner, the neighbors weren't home to let us in, causing us to miss dinner reservations. One of those times we were without access to the unit for at least 90 minutes. At one point when we still locked out, she responded saying "I assume you're in", which we weren't.
Once when locked out, she did offer to put us up in a hotel until we could get back in, and stated that we would definitely be that night, or at latest the next morning. That would have meant separating me and my wife from our belongings, and our passports (being in a foreign country) overnight, which simply wasn't acceptable. Needless to say once we had access to the unit after 5-6pm in the afternoon, we were not comfortable leaving the unit again for fear that we would not be able to regain access that evening, especially if we had gone for a night on the town. I wouldn't have wanted to wake her neighbor (and can't believe Tanisha would think that would be acceptable) later than say, 8pm.
Tanisha did "upgrade" us to another unit for the last night there, however, the keys weren't available until around noontime, and we didn't feel comfortable leaving our belongings in the first unit for the day, so we had to change our plans to accommodate. this meant that our day trip to Liverpool was cut very short since we didn't get there until 2pm instead of 9am.
Tanisha also offered to extend our stay for one night and give us two free nights in the future. Extending our vacation was not an option as changing our flights would have cost more than it was worth and we have no plans to return to Manchester in the near future.
While we were going through all of this, Tanisha did refund us £100, but since we needed to alter just about every day of our stay there, I reached out to AirBnB to request a full refund. Tanisha denied the request saying that she offered us the free nights, upgraded us to her other unit, gave us a partial refund, and that we had denied the hotel (which we did since it that didn't get us our belongings).
It's possible that future guests won't have any issues accessing the unit, but the way the issue was handled the entire time is far from what I would expect when you book with a Super Host. If you do decide to book any of Tanisha's units, I wish you the best of luck.