And, just for the record, the Ambanja guy above came in as part of the larger import we took part in with Jim from Chameleon Company. In our collection, we've got 2 male Nosy Falys, 4 female Ambanjas, and 2 female Sambavas from Charlie. We originally ordered 3 female Sambavas, but one was very sadly DOA (heat pack seems to have dislodged from top of box and was resting directly on the female). She was replaced at no charge, but the replacement was an Ambilobe with severe MBD. Charlie eventually "made right" on that, too, by cutting a bit off the price of the Faly males we got, which was right after other exporters told us Faly exports were no longer possible (including the exporters that Jim @ Chameleon company had connections with). And he did deliver 3/3 great looking Falys... we're just a bit depressed about that last part as one of the Falys--the one with the most awesome colors--seemed to be doing fantastically well, then just one afternoon he was hanging by his rear legs and a few hours later on the bottom of his cage.
With Jim on the other hand, we received 24 animals at the end of December as part of a larger import he was making. Most of them are females and seem to be doing quite well. Of the males, we got 4 Ambanja, 4 Nose Be, and 3 RB Ambilobe. 2 of the Ambanja didn't make it past the first week (I should not have posted photos of them, learned my lesson there), but all the others seem to be doing well and all but one finally got a clean fecal after panacure and flagyl. 12/13 females are still with us and seem to be doing relatively well, though one did pass away with what was diagnosed by the vet as a pretty bad bacterial infection (likely made worse by the extremely stressful ordeal of the capture/export process).
In the past we had purchased 4 other LTC WC Nosy Faly females from Jim. We had a generally bad experience with them. They never quite recovered after presumably giving jim 1-2 clutches then getting shipped to us. One had a prolapse and had to be treated by a vet but seems to have healed just great. Of the two others that had problems, one just never seemed to get acclimated, and the vet had no ideas on what to do... she survived a few months but was on a slow decline and we eventually lost eher. Another arrived missing part of her lower chin (not MBD, just looked like she had been injured in a fight or a fall). She seemed to be doing ok for a couple months, slowly recovering from wat was a stressful stint in her short life, but then she took a turn for the worse and we lost her very quickly. The lesson we learned from that was basically not to take WCs that have been imported and bred then are overtly being sold just at the start of their recovery process. We also got 2 CB Faly females from him, as well as 2 CB Nosy Bes, and they seem to be doing just fine. One of the CB Nosy Be's even gave us a huge fertile clutch not too long ago (after being paired with Vinnie's "True Blue" male Vader).
Edit: None of this is meant as a criticism of Jim or Charlie. Both have been great to work with and, though we've lost some WC animals, the overall success rate seems to be at least slightly above what others expect with WCs. My recommendation would simply be to try to make sure you talk to whoever you're working with directly, get the information you can, and set your expectations accordingly.