He visto que tienen el tour en get your guide Y el free tour en Viena con Prime tours fue un desastre, no la pudimos hacer, yo buscaría otro

Technically it's possible as there are no ladders/stairs on the way. But I remember several points where the sidewalks were rather narrow (and if the tourist group is big it would be uncomfortable to locate the wheelchair in order to hear the guide).

I think that it depends. You should think about a couple of things: 1. Was it entertaining, interesting, informative and understable? 2. How is the economical level in your country(not the same Spain than Canada, for example) 3. How is the economical level in the country that you're visiting(obviously in Austria things are more expensive than in Poland, for example). My experience as a Free Tour guide(it's already my job), people give between 5-8 euros per person. Sometimes you find people that give you 20€ per person, and other than only 20 cents of Euro per person. But usually, between 5-8 each one. I hope that my answer helped you!!!

Thank you!

Hi yes we have everyday a tour als to christmas at 11am and 3pm! It ends usually close to St. Ruberts Church, the oldest Church of Vienna!

Hi yes! Everyday at 11am & 3pm