We sailed on the Istanbul to Athens cruise around the Greek islands. This is our 3rd cruise on this boat in 3 successive years. We enjoyed it immensely. The informality of a small ship and the ease of getting aboard in each port is hard to beat. The food was excellent, even better than previous years. One of the nicest things about this line is the fact that excursions are included in the price. Over time you get to know the other passengers in your group as you tend to go with the same group each port. Most of the passengers have the same interests and there is an emphasis on museums and ancient sites.
The lectures are excellent and the sites visited are well chosen.
The staff are delightful and extremely helpful. There's a small pool with a number of loungers but it never seems to be overcrowded as people use the other rooms and the library. the ship is small enough to get in to the smaller ports and in many of these they use their own tenders. This is a bit of fun especially if there is a little chop to the water.
You are never going to have all the facilities on a small boat that you have on some of the massive ships but everything that you need is on board. The small cabins are pretty small but you tend not to spend a great deal of time in them. If you can afford one of the larger cabins these are certainly a great deal more comfortable.
This cruise line has come in for some criticism particularly because it has chartered some of the mid-summer cruises and left some passengers inconvenienced. But for simple charm, informality, friendliness, pleasant company and great destinations it is unbeatable!