This was our third cruise with Windstar and all three have been on the Wind Spirit (not planned, just worked out that way). It has been very interesting to watch the progress under the new ownership.
Ports visited: Istanbul, Kusadasi, Rhodes, Bodrum, Santorini, Mykonos and Athens. We did a combination of tours though Windstar, private tours and car rental.
Embarkation at the Istanbul port was easy. In Windstar's usual efficient style, check-in was quick. Luggage was already in our room when we arrived. Lunch buffet was great!
We love the design of Wind Spirit cabins. Very efficient layout and lots of storage space. The only (minor) complaint about 138 is when the water tight doors close going in and out of port. We had never experienced this on our Caribbean cruise (in 136), but we did on this cruise. It is not a big problem, just inconvenient.