My son and I did a couple of back to back weeks on the Agressor last summer. Loved it. For us the then 50% discounted price and being already in Europe made it possible financially. The diving was just wonderful.
Ditto with the boat, the people, food etc. All very good, comfortable, etc. But it was the diving we came for. Of course this is coming from someone who definitely did not know better at the time, doubling our "dive log count" in the course of the trip. But very experienced passengers liked it just as much.
Heard from people on the airport that they also loved their Blue o 2 trips.
We also saw some dive boats, that based on appearance (upkeep) alone, I would not have wanted to trust my life to, so some research seems advisable to me.
Just for comparisons sake (or potential future trips) it would be nice to learn about divers experience with what they experienced as a good, safe operator that runs more of a budget operation (I can put up with simpler food, less service etc., no made bed etc, but don't care to compromise on safety on a boat).
Getting there and safety on land: can't say much as we "blew" the entire two weeks we had on diving in part because we really wanted to, in part because it was summer (hot) and in part because of safety / security worries .. except that during the short time we were on land, all was good.
It got a little strange with all my s (separately in baggies in carty-on) li-ion batteries on the way out on the airport in Hurghada, considering they see dive related equipment all the time. But I got to keep them all in the end. We were on the airport in Istanbul twice during the greater trip. Missed a terrorist attack by one week and the coup by another week, while in Egypt all was good. I don't think it means that much so. We missed "stuff" in London, Paris, Nice, Munich, Orlando... too, just by different time frames. And so far we happened to be on the planes that made it... I do think about route selection and safety security etc. before choosing. In this case I avoided Cairo because of stuff I read and was fine with Istanbul. Well, Cairo was fine... Those pyramids etc. Will have to be discovered (by us) another time. Just saying that trying to be careful is a good thing and a lot better than asking for trouble, but that at the same time, that most of what goes on goes on when and where it does, totally irrespectfull of one's carefullness.