The LM came with a domed tamper which I’d not seen or heard of before. I was sceptical at first, having always used flat ones.
However I really like how it is to use, seems to be easier to more freely remove the tamper without disturbing the coffee bed.
Are there any upsides/downsides to it? I was always under the impression a perfectly level puck bed was the goal but the resulting coffee doesn’t seem to suffer.