We used On Daytrip for three out of the four segments of our trip and LOT Polish airlines for the other segment. On Daytrip provided a pleasant comfortable journey and we were able to get in some sightseeing on the way. The drivers were the best. They were courteous, professional, flexible and big plus--able to carry on a conversation in fluent English. The first segment was Berlin to Krakow where we were picked up at the airport (Tegel), stopped for ice cream and a walkabout at Wroclaw's delightful main square, and on to Krakow with curb service at our destination apartment. I loved Michal J.'s stories about life in the former USSR. From Krakow to Budapest, we flew with LOT where we had delays, Soviet bloc airports, the joy of being frisked by actual soldiers, old turboprop planes where economy passengers get water and a chocolate wafer (no Pepsi). Total time was not a whole lot faster than if we had used On Daytrip, and the only sightseeing we did was in the airport. We switched back to On Daytrip for the leg from Budapest to Prague with a stop in Bratislava (fun stop, main square is kind of villagey, folksy). Driver Alex D. was great, and could speak intelligently about a wide range of subjects. Scenery was good. We used On Daytrip again from Prague to Berlin with same driver Alex D. and stopped in Dresden's for a tour of the central downtown area that has been rebuilt from the rubble of WWII. Both times, the On Daytrip drivers doubled as tour guides for the stops and were flexible about letting us stop and see what we wanted to see.
Again, it was a very pleasant trip and Alex D. delivered us to the front door of our Aparthotel in Berlin. I can't say enough good things about On Daytrip. It was great. One other tip--if you want to stop somewhere that is not on their website, just ask. They will likely accommodate some variation with the route and sightseeing options.