This is a Must-Go-and-See place during the Xmas holidays. It's a delightful place to wander around and tour the desert gardens. And I have gone during the daytime and been impressed witht he gardens then, too.
As for the chocolates, they are a solid delight. There's not many places you can do a walking Factory tour and feel as if you're more closely connected to ewhat it takes to do the whole process. I find that I enjoy watching the industry of the process as much as sampling. No, I like it more.
The downside to me is the whole touristy aspect. It's fine until the busses start rolling in and dispensing the gaggle of picture-snapping visitors. It's like a knot of people cramming in. I try to time it so that I'm just missing the trhong of tourists. If you can do that, then this is a fun little excursion that serves a little education with the sweets.