Good day,
We, too, did a similar cruise with Uniworld in early 2019. Our cruise itinerary was actually 1 week from Luxor to Aswan to Luxor. This was preceded and followed by a couple days in Cairo. Cairo to Luxor and back were via short flights. Very good hotel in Cairo - Four Seasons on the Nile R.
We were supposed to be on the Sphinx, but the fire delayed her launch, so we were put on the Tosca, which was very good. The staff was great for service. Food and accommodation was very good. The wifi was spotty some days requiring multiple logons, but that was a minor annoyance.
Our guide was very good - an educated Egyptologist who gave just the right amount of information and never hesitated to respond to questions.
Our larger group was divided into smaller day tour groups; ours was 22.
We took both optional excursions, one to Abu Simbel and the dawn hot air balloon trip over the Valley of the Kings and close by sites. Both were well worth the time and expense.
One of our group asked the chef what camel tasted like; the next day, the chef went to a local market and acquired a camel roast which he cooked for us.
We had also added the pre-extension to Jordan. Also, an excellent choice.
During our trip, I was able to post daily on our blog. Here is the link, if you think the information might be useful for you. Warning - the blog is photo heavy.
https://canucksinegypt.blogspot.com/ (Use the menu icon, top left, to see the earlier posts)
Enjoy your trip.
Salaam