I ordered the S-RGB4500. I had no trouble with making payment via paypal. I had zero troubles with the order and also with contacting Winni. I will provide a full review of the product in a few days in the product section. I was able to customize my order and asked for 3axis mirrors. Golden Star Lighting also provides cases and other laser projector parts. You can contact them for a product list or hunt around on the forum as others have posted the product list. I would order from this seller again.
You can contact Winni at goldenstarwinni@gmail.com or Skype : goldenstarwinni
http://www.goldenstarlaser.com/
http://www.goldenstarlighting.com