I used to have a thing for coffee brewers. Would try out so many different options and spend a lot of money on getting them (second hand)
I eventually settled on my Moccamaster. Tis the best coffee brewers I've had and I wouldn't trade it for anything else by now
I have had no issues with the large one whatsoever. I have a friend who has had issues with his, but it just needed a good cleaning and has never done it again.
I like the idea of the uno model, but i can make one cup in mine too, and i found the idea of those mini filters unpractical. I also never make just ine (small) cup. I usually make 4, when i wake up and 2 when i just need a single mug. And it is just so fast!