I also like TL-191, for the same reasons.
My other favorite Turtledove book is "Ruled Britannia." You really grow connected to Shakespeare and his buddies in the acting troupe, the climax is heart-racingly cool, and Turtledove comes up with some hilarious Shakespearean English puns that made me laugh out loud.
Right now, I'm reading The Peshawar Lancers for the first time. The history is not so good (Satanic EEEEEEEEEEEEEvil Russia? The U.S. and Germany just fall off the face of the earth so easily? The Japanese wearing kimonos and samurai outfits again when they had already adopted Western dress by 1878?), but the story itself is pure fun. A good band of characters, lots of swashbuckling action, and neat steampunk.