We chose for the smaller of the three types of ships that they have. We have, in the past, sailed on the Silver Cloud and the Silver Spirit. We did not really like their largest ship the Spirit.
The trip went from Athens, four ports in Egypt as well as the Suez Canal, Aquaba, two ports in Oman and our last stop was Dubai.
What a great trip this was, the very best ever with Silversea. Not one complaint. But we sail for specific reasons with them.
My wife has motion sickness problems, so we like to be as near to the waterline as possible. Great cabin, good aircon, very good beds, excellent service from the butler (shared) and maid.