This is a great tour for your first time to Europe but it is anything but leisurely, 21 days. Anyone interested I will be happy to tell you about it. However, don't go when it is warm as many of the hotels do not have AC and it may be too noisey to leave the windows open. We just got back June 8th and I would not want to be going any later. Great sites, great food and we had a wonderful time. Anyone that is picky about your hotel room, I would suggest you not take a Cosmos tour. Hotels have small rooms and even smaller showers. Rooms are very basic with no frills and like I said no AC for the most part. But most of the hotels we stayed in were in wonderful little quaint villages. You are not in your room that much as you get into the city late afternoon and then go to dinner. You are up bright and early the next morning to tour. We took a lot of op. tours and op. dinners at night so we got in late, took a shower and went to bed. Then you are up at 6am to 6:30am in the morning and out. Long bus rides but they stop about every 2 hours for a break, usually at an auto center on the highway for lunch, (They have pretty nice auto centers.) or in a little town. It is well worth the money for this tour. You could not see everything we saw and see eveything we did for the same amount of money. My biggest fear was the hotels and I was pleasantly surprised.
If you have any questions, just ask.