I ordered two of these at the same time. the GSI foldable silicon cone and the Snow Peak. The Snowpeak won the test trials you're very low-tech solution to a common morning problem. you wouldn't think it to look at it but it's actually very stable. I put it on top of it two and a half inch diameter thermos and it has stayed put. it also was very stable something about the weight of the coffee in the filter and the design promoted this. the only problem I had was feeling too much hot water in the filter than grains of coffee run into the thermos but I consider this a user problem I've been using this in the morning and I will take it camping with me too.
This review was written in the old system and had content requirements that are different than reviews written today.