Downside : a normal coffee brew process generates 6-12 cups of Joe.
I guess we could all switch to a press ... but that's a bit messy and requires a stand alone heating method (I've not the space to keep a proper tea kettle on my office desk)
I've been using single cup coffee makers like this Black & Decker Brew 'n Go for years. No mess, no fuss, just pour a cup full of fresh water from your cup in to the reservoir, add a couple scoops of fresh ground coffee to the filter basket and hit the go button.
You get a fresh cup of coffee without the waste of those empty "pods," and no DRM to boot.