Of course - ideally it is the way to come home from a land trip in Europe. But you should not ignore the Med ports likely included . We have had TA sailings from Rome which stopped at Livorno, Monte Carlo, Sardinia, Corsica, Malaga, Barcelona, Cadiz, Porto, and Lisbon (among others) which may complement an earlier eastern Med cruise.— not to mention the Canaries, Azores, Madeira en route.
The fact remains: it is a leisurely way to come back from Europe - often at a cost well below that of a flight.