Just googled J D Gross to find out about their chocolates available from Lidl, and came across your website. Personally, I find the Ecuador 70% a little too bitter for my taste, but for me the Amazonas 60% (not 46% as Colin says) is absolutely perfect – neck and neck with Cote D’Or (seemingly available only from Waitrose now) in my view.
Amazonas comes from the Tocache Province in Peru. If anyone has doubts about the Rainforest issue, keep an open mind and check out the Rainforest Alliance certification scheme on their website:
http://www.rainforest-alliance.org/agriculture
and their blog about cocoa farming in south America:
http://thefrogblog.org.uk/category/country/page/4/