Birrfeld airport is my home base, the preferred departure point for most of my sightseeing flights. Not only because of the proximity, but also because of the availability of the aircraft.
the traffic amount on an uncontrolled airport should not be underestimated. On a beautiful summer weekend, it is possible that you have to stand for several minutes at the holding point because there is a traffic jam for departure. The airport is very convenient because of its proximity to Zurich, as it is usually no problem to fly over the city of Zurich, if the Tower of Zurich has the capability to allow it. Crossings in Zurich are to be avoided especially at the out and inbound rush times. Once these are over, however, the tower has less to do and you can get an interesting view of the airport from above, a common view.
From Birrfeld, you are very fast in the area of the lake of Zurich, Lake Lucerne, Lake Constance, Säntis or the Bündlerland. Since it does not need an entry-slot, as it is needed in Zurich, a sightseeing flight to another country can also be handled without any problems.
Handling at Birrfeld Airfield is very easy for VFR pilots. After creating a flight announcement, nothing blocks your way for an adventure. Birrfeld also offers customs, which also makes direct flights to foreign countries very easy.
Birrfeld Airport is easily accessible via various motorway exits. From Mellingen, I am in about 10 minutes on site and can also offer sightseeing flights in a very short notice.