The self guided tour will take you all off 5 minutes to finish. It's just you walking alongside a glass wall with decals tell you what each step of the process is. You can see the factory and the workers running around. Most of the process is automated but you can see people manually packing the chocolates.
You don't get much in terms of samples though. I was really hoping to try some of the specialty chocolates behind the counter but alas no you can't.
The chocolate itself is pretty good. It's quite smooth and tastes more refined than say Hershey's. The chocolate is on the sweeter side though.