I have now visited Rantakerttu several times, mainly for lunch during the working week. I am a big fan of Rantakerttu's mother, Pippurimylly. As of autumn, Rantakerttu serves a buffet lunch with a soup and 2-3 other dishes, salad buffet and bread + a couple of "plat du jour" dishes served to the table. The lunch has mainly been very nice, but I would prefer more traditional dishes (in Swedish "husmanskost") well prepared. Last Thursday I picked liver from the "plat du jour" menu, and that was just great. I really like the "sancta simplicita" of this place and judging from the crowded tables, there are many others sharing my opinion. The service is friendly and everything works well.
Today, while my wife was on a long business trip, I visited Rantakerttu with my two children to give them a chance to try the hamburger buffet . For myself, I picked a salad from the menu and the kids feasted on the buffet. Everything went well, and the buffet actually worked better than expected. The price for the kids was a positive surprise, too. There was I nice, honest selection of ingredients representing the hamburger genre, and the staff was constantly checking the quantities available.
When evaluating restaurants, it is important to understand the style and the target audience of the place you are visiting. Rantakerttu and its sister Kerttu and brother Hugo are designed to be reasonably priced, simple and easy-to-access neighborhood restaurants. If you are looking for upscale gourmet experiences, you really have to go somewhere else. In Turku, you really do not have so many options for fine dining, but there is a good selection of restaurants with reasonably good quality. - Therefore, at least I save the "pilgrimages" to bigger European cities. Generally, my favorites are not that complicated, as I truly respect simple meals prepared using high quality ingredients. Honesty and nice service are important, too. After the several visits Rantakerttu has a place in my heart and I will re-visit it numerous times, as long as we both live.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.