Let me first explain that I'm giving 7 stars for those folks who are fans of sexploitation flicks NOT serious film critics. This is a Nazi sexploitation flick and it has not only plenty of nudity but explicit, hardcore pornographic shots as well.
That said, let me point out why this is a far better film than Salon Kitty. The two films are different versions of what is essentially the same story: a young Jewish woman during the Nazis' reign is sexually abused and exploited by the Reich eventually becoming the madame of a brothel that caters to Nazi officers where she spies for either the Nazi higher ups or the Resistance depending on which film you watch.
Salon Kitty has lots of sets and costumes and clearly a much higher budget and better cinematography, but it is a silly film peopled by characters you don't care much about and whose thin plot falls apart completely by the end. Oh, and SK also has "freaks". You get to see naked oddities and I suppose that's a thrill for some folks. Generally what you get is a lot of half-naked women lounging around doing not much of anything.
Nazi Love Camp 27, on the other hand, has budget sets and costumes, bad dubbing, and obligatory sexploitation scenes like whippings, the lesbian warden and several hardcore penetration shots including a gang rape. One would think that this was a thinly-veiled excuse for a porno, and to some extent it is, but it actually has a fairly coherent plot and you truly DO care about the lead character and even others. Yes, the final scene is a bit over the top, but you're still interested in what is happening right up to the end of the film --- not just fast forwarding to the next naked part.
Sirpa Lane's performance is strong and due to whatever quirk of talent or fate, she manages to convey the horror and the poignancy of her character's struggles. This is not to say that this is a great film, again know what you're getting into -- but if you had to make a choice and see only one of these films, despite its deplorable title Nazi Love Camp 27 has much more to recommend it than just the sex in terms of character development and plot. Salon Kitty only has naked boobs and dwarfs and amputees in nicely appointed settings.