I agree with Fal Air,
I have done further checking and have found that former students of mine have dealt with Ambassador on further education basis, such as BFR's and Inst Comp cks.
Dekkers seems to be more than happy to accept $$$cash$$$ for a discount, thus no record of the transaction taking place.
After 9/11, one of these persons came to me and said he wasn't surprised that one or more of the terrorist "pilots" had trained at Huffman in Venice, alledging a "cash basis" transaction.
I don't think Dekkers had anything to do whatsoever with the 9/11 tragedy, however, his alledged questionable business practices must make the trail harder to trace.
Before anyone calls me for aiming without ammo, my former students in (2) have agreed to be identified in any litigation Dekkers may wish to bring as a result of this post.
Stay away from Ambassador...that's my advice.