Before even arriving at the apartment Aija gave us a great recommendation on which taxi to take from the airport (Panda). This saved us an expensive fixed fare ride and made us quite happy.
Upon arriving Aija welcomed us and explained the intricacies of the apartment (keys, wifi etc.)
The apartment was perfect for our needs (seven people want to sleep in separate beds) and located smack in the middle of Riga's old town.
Minor gripes were that one of the toilets had a weak pump and couldn't be used for, ahem, major business and also the shower in this bathroom didn't have shower curtains. Therefore seven people had to shuffle in and out of one bathroom every morning which took some time.
All in all we really liked to stay in Aija's apartment and would recommend going there.