I've been using MSR Whisperlite for many years. This windshield is as supplied with the stove. Its superb as a windshield, allowing an easy fit over the fuel hose. The reflector ring helps improve efficiency and protects the ground from heat effects. The main shield should work with most stoves. The ring will depend on the stove size and design .
The whole thing is made from a flexible metal that lasts the test of time. Mine's probably twenty years old, and still serviceable. I've got a new one, but thats been in its packet for several years. Its there when the old one finally gives out!
Five stars definitely, and highly recommend.