Heavy whipping cream will work but you will only get a small pad of butter. Look through the yogurt link I posted and there is butter instructions in that thread.
Then I would have to say those people have never eaten good quality chevre. Wine, pate and cheese - I think the french know a little about those 3 things LOL
My goats milk makes excellent cheese. Never had a problem with it.
My yogurt/cheese/buttermilk is very popular...
When my goats are milking we get a lot of milk. It forced me to figure out how to do alot of things with it. Fresh strained milk my kids drink. At first I was a little worried and pasturized the milk. I found that pasturizing will leave a goaty after taste while raw it is sweet and perfect...