agree - AMA and Scenic both are great choices as well. All deliver a a comparable product, so it often comes down to your preferred itinerary and personal choices regarding decor and pax numbers.
I believe the offices in Atlanta are are private commercial services affiliated with the official Chinese consulate in Houston.
You can request expedited services - but be warned they are very expensive.
Agree - I was not really interested in visiting -but the guide (a young man dressed in tux tails, & top hat) was outstanding and the excursion ended up being a fascinating and enjoyable afternoon.
We prearranged a taxi in Budapest - it was about 30 minutes from airport to our hotel - the Marriott. Driver was prompt and gave us a running commentary on what we were seeing as we drive.
The tram system is quite easy to use and quick and efficient - the tracks were just along the river and visible from both the ship - and the hotel.
We rode it several times, once down to the Parliament for our tour and once "just to experience it". We were able to buy the tickets from the hotel desk - although that was in 2018, so they may have upgraded the system by now.
While I love Viking, I would suggest you look at AMAwaterways as well, they cater to solo traveller, and actually have 5 and 7 top tables in the dining room to accommodate solo travelers to join a table.
That may be true..luckily, I have not had that experience. My suggestion is if there is a "must do" I would ask the guide prior to leaving on the excursion.
Viking has always offered the "Gentle Walkers" group on the past four cruises I have taken. You cover the same territory, just at a slower pace, and often avoiding inclines or stairs w/o handrails. Only difference is that sometimes your free or shopping time was shortened
AMA Lucia had a refrigerator in the stateroom as well as an ice machine near the reception desk and ice bucket in the room. or simply ask your room steward to make sure you have ice each afternoon.