Stuttgart Airport (EDDS)

Johannes wrote a good summary.
Supplementary information:
- ATC does a great job handling training flights (IFR and VFR), airline traffic and business jets on a single runway. Busy airport.
- rental cars at main terminal (1.8 km by foot or taxi)
- railway at main terminal (1.8 km …)
- handling friendly + efficient, nice FBO, but pretty expensive
- landing, handling + parking for one day, up to 4,000 kg MTOM: 500 EUR

Last update 2020-07-09: Slot required for the flight plan (as a coordinated Level 3 airport); brief phone call with airport coordination available 24/7 https://fluko.org.

IFR arrival/departure without issues, short taxi from midfield to Apron 2. Parking with Follow-Me, which also takes you the few meters to the GAT.

GAT with a crew lounge including free cold drinks, kitchen, etc., well equipped. Staff very friendly and helpful. Security screening as required at all airports, but fast and a short walk. PAX list (sheet in the older comments below) required under EU regulation as at other aerodromes (e.g., Graz), but reportedly disposed of in the evening.

Price list for GA not published by either the airport or the FBO Kurz Aviation Service. On request, Kurz AS will email a price list to: ops@bac-stuttgart.com. Example Grumman Cheetah AA5 (999 kg MTOM) with 1 crew + 1 PAX:
Landing and take-off 33,30€ each;
1 PAX landing/departure 5,23€ each;
1 PAX security charge departure 1,44€;
Operation/Terminal Fee ("GAT fee") 29€ =>
Total 124,70€ for just under 1 hour on the ground.
Training flights cost half.

Prior notification by email to FBO Kurz with noise certificate or noise classification (N-Reg) to speed up a quick turn-around. The email existed in hard copy, but its content was not known. On arrival the invoice could not be settled directly, given the direct departure in a few minutes (only a short refreshment stop). At departure the invoice still wasn’t ready, although previously 3 people were behind the counter. Entering all data manually instead of copy&paste took 10 minutes, which then eats into TOBT. Under time pressure you’ll probably need to push the staff more here, even though the information had been provided in advance. The sluggishness in invoicing and the overall high fees reduce the otherwise very good performance to 3 stars.

Details on TOBT / TSAT:
www.acdm-germany.de

Approach was very relaxed with a dedicated tower frequency for VFR traffic and we were expertly sequenced between the heavies.
On the ground we were greeted courteously and then driven to the terminal at record speed, as we were heading to the trade fair.
On the way back we could call the GAT and were picked up at the terminal to save the 30-minute walk.
Invoice processing was a bit sluggish (the aircraft had to be created in the system) and the fees were, as expected, on the higher side.
€13.50 for landing and another €13.50 for takeoff. Pax cost €5.23 inbound and another €5.23 outbound. Plus a €1.44 security fee.
Then €7.87 parking fee for one day (free under 1 hour) and a €22.50 apron charge.
All amounts were net prices for an AA5 with MTOW 1089 kg. The total on the invoice was €82.43 gross.
On departure, ATC again did everything possible to fit VFR arrivals and departures between the IFR traffic.