The Ra is wonderful - large and comfortable two-room cabins, but only 26 of them. Beautiful, typically Viking understated elegance throughout. The guides are spectacular; Viking recruits Egyptologists to serve as guides, and their knowledge is encyclopedic -- you stay with one guide/teacher throughout the cruise.
The clientele is a typical Viking Cruise crowd -- mostly affluent Americans aged 55-80.
Be advised that this cruise is go-go-go; in the 3 Cairo days and 8 cruise days there are only two free afternoons to relax and recharge. Several very early-morning departures (4am to 6:30 am).
The on-board restaurant is excellent, offering both Egyptian specialties and more familiar "Western" options at every on-board meal. The off-board meals are mixed -- all buffets of varying quality.
Egypt itself is overwhelming. You stay in a bubble of splendid luxury, but outside it, urban Egypt is largely impoverished and surprisingly squalid. Egypt 30-40 years ago was a 2nd world country with 1st world ambitions. Today, except for a small elite, the cities are decaying and third-world. You do feel safe, even outside the bubble, although you will be constantly harassed by vendors selling cheap China-made trinkets.
The two offered add-ons (Jerusalem before and Jordan after) are super, but if you do both add-ons and the cruise you will be exhausted most of the time. Both Israel and Jordan are lovely, clean and modern.
All cabins are the same, but some have balconies and others don't. All are two-room suites with king bedroom and comfortable sitting room. Bathroom is large and hotel-like; unusual for a cruise bathroom.