Honest review: apartment is okay, really cozy and well located. Perfect if you are looking for a place to visit touristic area. Internet was not 100% stable, but I could run some calls with no major troubles.
Also, we did request her to prepare the sofa bed for us, and when we get there everything was perfectly setup.
We did not meet Tania personally, but the check in and check out instructions were just fine.
Downsides:
Not sure what's going on with the neighbors living above Tania's apartment, but definitely they forgot they are living in a building and not in a house. A lot of noises every day until really late (~1am), and then when you finally can get some sleep, they start all over again by 5-6am.
There are some light bulbs missing in the apartment. For the living room, for example, there was only one floor lamp working.