This place is simply amazing. Apart from the fact that there is literally everything you can think of, from dishes to dishwasher and washing machine, in the apartment, it is just so nicely decorated. Ludmila has really given a lot of thought to the interior design and everything is in top shape. The fact that there is a fireplace that can be used to create a nice atmosphere for a chill evening at "home" makes the place just perfect.
While not super centrally located, it is easy to go to the Old Town by taxi using Taxify - just costs around 3EUR and takes around 10min.
Sadly we couldn't meet Ludmila in person. However, she was super responsive to all my messages and provided a perfect description of how to get in the apartment and what to take care of.
There was absolutely nothing to complain about - if we will ever go to Riga again, no doubt this would be our preferred place to stay :)