I have been using an AeroPress almost exclusively since ~2012. I own three of the originals. I recently purchased this travel AeroPress Go to be my travel option, instead of relying on one of the originals that I have. In the time that I have owned an AeroPress, I have had to replace 2 plunger seals. These things are tanks, otherwise, and have held up to multiple daily uses with no trouble. I was excited to try the Go after it arrived. Except, the filter cap rim / collar is _too large_ to secure onto the chamber. I can't even get the thing to twist a millimeter. I saw a couple of other reviews with similar problems, but most of them indicated they could at least get the thing to secure somewhat. I just about tore my palm trying to get the thing to secure. It's completely useless like this. Buyer beware.