I am not a chocolate lover but my wife is. However, aft my trip there I am now addicted. The environment was very pristine. They have tours there but you need to make sure you call ahead.
The staff was more than professional and extremely courteous. I appreciated their knowledge and they directed me to the form of chocolate that I will forever call my favorite.
If the factory and the shop are not enough for you, there is a cacti garden. It is especially It is not a long walk but at night it makes for a little place or romance with a whiff of cocoa in the air. Just don't fall in the garden ;-)
It is definitely a place that we will be recommending and revisiting!