We just bought an apartment in Skärmarbrink with Sanna as our mäklare. The communication with her was really easy and she answered quickly at all our questions regarding the needs and expectations of the sellers, possible renovations, the economy of the BRF, etc.
She also organized for us a second visit of the apartment, and of the BRF common rooms, which was really nice.
From the perspective of a foreigner, not fluent in Swedish, she made all the process from the vining to the contract signature really smooth and easy to understand. I would definitely rely on Sanna as a mäklare!