I bought this as a gift for someone who is used to only drinking French press. From what I've heard, they are enjoying it very much and are making V60 a lot more often now because of the oily and full bodied results this filter produces. They also claim that the cups are a lot cleaner with less sediment, allowing the flavours to shine through better than brewing French press. Keep in mind, their grinder produces a lot of fines, which likely contributes to the French press being a little gritty. Again, this was a gift and I am only going off of what I have heard, but I intend to buy some soon to try out myself!

Try these out. They have a similar drawdown time to Sibarist filters (e.g. if Sibarist has a complete drawdown of 1 min, these will be 1 min and 6 seconds, while a regular Hario filter might be 3 mins). The pore size and density will be different than a Sibarist, producing a different brew - closer to a cloth filtered coffee without any of the difficulty of maintenance. Brews have been clean and rich, while cleaning the filter has been pretty easy.

I've used each weave about 20 times each, so I can't speak to the claim of it being reusable 1000 times. However, I haven't noticed any deterioration in these 20 uses. If the claim is true, then these are a great cost-effective alternative to Sibarist filters (if a quick and delicious brew is the aim).

The only complaint I have is that the first couple uses require what the company calls 'ironing' - basically using hot water to mold the filter so it fits the dripper and sticks to the walls. This makes the first two uses a tad bit more annoying than a paper filter, but should make it perfect for the next 998 uses.

The differences between the different weave sizes are not likely to be consequential to most people. I can't find any info on the matter, but based on my uses, I am under the impression that the Impulse weave size is 50% 20um pores and 50% 25um holes. If you are only going to select one, the pair of pennies of this internet stranger is to go for 25um. You are not missing out on anything radically different compared to the 20um and you are getting a slightly faster flow rate (I.e. you are getting your coffee faster).

I highly recommend these.