We finished this tour a few weeks ago and had a great time! Tour started Sunday April 26 in Haarlem, finished Saturday May 16 in Paris. We chose those dates because we wanted to see the tulips at Keukenhof Gardens. The gardens were gorgeous and one of my favorite stops. It included trees, ponds, fountains, & thousands of bulb flowers, azaleas and rhododendren in bloom. We had a couple of hours there before heading to Bacharach. Didn't know when we signed up that April 27 is King's Day in Netherlands. We ended up enjoying it, but just be aware that it's crazy busy & noisy (esp. in Amsterdam), like Mardis Gras & July 4th, so check your tour dates!
Take the optional gondola ride in Venice!
PRETOUR: We arrived a few days early, staying at the quiet Breathe Hotel in Leiden (no elevator). We visited the Rijksmuseum in Leiden, which has awesome exhibits of ancient Egyptian, Greek & Roman artifacts. We also toured the Molen DeValk windmill (climbing lots of narrow stairs & ladders). Also went to the enjoyable Escher Museum in Den Hague.
POSTTOUR: Stayed a few extra days in Paris, at the nice Hotel Muguet (larger room than final tour Hotel Beaugency). We visited the Rodin Museum & Asian Art Museum.
To answer your questions:
1. WEATHER: It was all over the place this time of year. Sun, rain, light dusting of mountain snow overnight in lovely Lauterbrunnen Switzerland. We got lucky until Florence where it rained heavily. Warm in Rome. Cold & drizzle in Paris (the week after we left Paris had heatwave). See what we packed in #2. CROWDS - Places were very busy (Venice, Rome, the Louvre) but they weren't as bad as high season. Crowd for Mona Lisa was shoulder to shoulder, barely moving. I bailed because it was ridiculous.
2. Yep, everyone had 1 carry-on rolling suitcase plus a medium backpack/totebag. Sink wash in hotels! Laundry service in Cinque Terre. We each had 3 shortsleeve technical Tshirts, 3 long-sleeved ones, 2 long-sleeved UPF50 sunshirts, merino wool base layer 'longjohns' and long-sleeved top, fleece zip jacket, raincoat, gloves, knit hat, neck gaiter & mini-travel umbrella. We wore waterproof low hiking boots on plane, and packed 1 pair of athletic shoes. We each had a Cotopaxi 35L Backpack as main luggage. Mine weighed 20 lbs & hubby's 23 lbs. Hubby had Eddie Bauer packable backpack as personal item. Mine was Adidas Me Too totebag. Also had packable slingbags for everyday use.
IMPORTANT: Some hotels did NOT have elevators! Our backpacks were great for stairs, especially our top floor room (5th floor in USA) in Lauterbrunnen. People with rolling suitcase developed technique of placing it two steps up in front of them, stepping up one step, repeat. Practice in advance with a packed suitcase! Be able to walk a mile or two at a 20-minute a mile pace (with a few 30 to 60 seconds at an 18-minute a mile pace). Lots of stairs on this trip, but two people with canes & knee replacements did it!
3. Sometimes there were a few options for entree & sides, others were preset, with an option for vegetarians. 1st night dinner was awesome with numerous Indonesian dishes. Cinque Terre's entree was mixed seafood in a clay pot (clams, mussels, fish, shrimp, lobster, octopus). Lunch stops at autoplazas were great. Try to find nontraditional foods for your non-tour meals to avoid burnout from sausage, potatoes and pasta.
4. See advice from other forum members regarding insurance. We bought TravelGuard trip insurance within a few days of signing up for the tour. We also bought MedJet thru AARP for emergency evacuation (1-yr policy).
5. We enjoyed the bus time because we loved looking out at the scenery. Our guide Jody talked about history of countries we were travelling thru, played a few songs from each country & shared snacks! She also had quiet time when some people napped, chatted or read books. Great time to go thru photos (we took about 2,800!) and delete bad ones.