Just finished a round trip on Condor from Seattle to Frankfurt with a return from Basel in their Comfort Class (Condor's business class). I had trouble finding recent reviews so thought I would share my experiences.
Booking was easy on the Condor website and telephone calls for seat reservations, etc. were handled professionally and with courtesy. When I decided to change the itinerary and not use the Frankfurt/Basel portion on the outbound flight, it was easy to cancel the FRA/BSL portion only and the refund was in my account within 48 hours.
Checking in - Seattle check in staff were pleasant and volunteered information about the use of the airline lounge arranged for comfort class passengers. Check in in Frankfurt was efficient with little information given and no information volunteered about lounge facilities though the agent answered my question. The agent did not mention that there would be a requirement to clear security twice if I used the lounge and he did not mention the system for getting to the gate being used for the flight. It was separate from the rest of the gates in the terminal and required getting through security a second time as well as some sort of Condor boarding pass check. There was an extremely long line for the Condor check as there was not enough staff. No one seemed able to find out why some passengers were supposed to use one line while others were supposed to use a different line. It was frustrating and confusing. There was no line for their premium passengers. This is so easy to resolve with some signs and a staff member pointing passengers in the right direction as they approached the area.
Flights - the cabin crew were absolutely terrific both ways. Helpful, smiling and professional. The food was very good indeed! There are several starters all served on one tray so you can work your way through them as you wish. Plenty of hot, fresh bread and rolls. There were 3 choices for a main course - seemed to be a meat, a fish and a vegetarian choice both ways. I had the meat and it was very good! There is a cheese a fruit plate next and then dessert. Bar service is somewhat limited for choices of liquor but not so much that it was a problem. There are several wines on offer and the menu gave a description of each that was interesting and helpful. There are aperitifs and digestifs available.
There were rounds of water and juice regularly offered and an ice cream in between the two meal services on the west bound. The second meal was very good both ways though simpler than the first.
In flight entertainment - screens on the front bulkheads with very recent films and some cartoons and TV shows. The usual music and other channels were also available. Fine particularly given the fare one pays.
Baggage seemed to be handled efficiently and arrived quickly on the carousels without damage, etc.
My only complaint is one that will stop me from flying Condor again. The seats in the Comfort Class cabin are absolutely the most uncomfortable business class seats I've ever experienced. They are probably 10 or 15 years out-of-date and there isn't enough pitch to allow more than a small foot rest elevation and a few degrees of recline. The foot rest has a flip down "shelf" for the bottom of your feet but it is made of metal and only about 3" so just your heel fits on it and the metal edge digs into your foot - okay if you are wearing shoes but most passengers take off their shoes on a 10 hours flight! It was also not particularly easy to figure out how to adjust it for comfort.
If the seat could be improved to a more comfortable, long haul seat (I don't expect lay flat at the fares one pays on Condor but something that has a more comfortable recline and easier adjustments), I would opt for Condor in the future on at least some of my long haul flights to Europe and that's a serious compliment to them because I'm usually in BA First.
If you can manage the seat situation, I would highly recommend Condor for a business class flight at a much reduced fare!