For snow camping this thing rules. No longer will your shovel slowly melt into the snow and tip your meal over. Add some stability to your stove so you can guarntee a tasty meal instead of a spilt one.

This is a great base for snow camping or for other unstable surfaces like sand, etc. It's pretty light and easy to set up and locks into most of the MSR stoves (also works with the canister-based "WindPro" model by the way).
Little pricey for what it is...

This device is an absolute must if you are winter camping with a compatible MSR stove. it makes a great stable platform for cooking on, and saves you from spilled dinner in the snow.

I've had my trillium stove base to go with my MSR for about 6 years now, and it finally has begun to fail on me, I dont know if its from water, snow, glacial dust, clay or some other crud, but i've tried some lubricants and it still seizes up taking too much force to pull apart, so alas, i'm ordering another one, and don't feel bad about it because these things are great, if you every use your whisperlite on unstable ground or any kind of snow/ice get one, it will pay dividends

I have a pocket rocket and the stove gets top heavy when you are boling water. This little base adds stability to the boiling pot. It makes so it doesn't feel like it is going to tip over. A definite must for anyone with a pocket rocket stove or a stove like it.

I do a lot of hiking where the ground is not particularly stable, this device has proven invaluable through three MSR stoves (Whisperlite, Whisperlite International, and Dragonfly). Without it, several of my meals would have undoubtedly become part of Mt Mansfield, the ice on Princeto Locks, or that really cool quarry outside of North Andover. Rock, gravel, snow and particularly sandy soil make it an absolute necessity. I wouldn't buy an MSR stove without picking one up to go with it. Some graphite or lithium grease in the inner ring keeps it from seizing.