I had not intended to add more, because after all I only got the bug a year ago and so many have been doing it much longer so what is my opinion, but... I can at least say that like Lime disease, once infected there is no cure.

I am user orientated though I've seen some beautifully restored classic machines that I would love to display. Except that even if I had the right venue for that I find that objects in display cases ultimately become invisible and the case a dust collector. Naturally I developed a taste for full size machines and machines from the fifties and sixties, which as Uwe says were at the fulcrum of typewriter development. A standard from that period should be about the must rugged and usable typewriter there is and I see no reason to doubt it. I do have several imperfect but functional examples of the Hermes 3000 (middle variant), which is a portable I could stand to use: quiet, easy on the fingers and a fine output, but one machine extolled by some as a workhorse - the Olympia SM9 - I cannot stand to use because it numbs up my fingers! There must be a hard stop at the bottom of the travel worse than most other machines, at least on the one I tried.

My criteria for deciding if I really enjoy a typewriter is "If this were the only typewriter available would I use it"? That's a lot different than "the best". There are machines which once I got over the pleasure that it works I would likely never use again, like electric portables - they may work fine but do not grab me - and many manual portables. Some are on the fence - like a 1940's Underwood standard with chrome and a U.S. Navy plaque on the back. It's loud and it sounds like the sound track to the typing pool and the touch is just kind of OK, but it looks so damn cool I think I would actually use it if it were the only one! Possibly wearing over the ear headphones.

I posted a photo of my most recent, a 1950's Remington standard, and so far my enjoyment is still on the uptick: both because it looks beat and is not going on display anytime in this cycle of the universe and because, though it has mechanical issues, it still does its basic job well.  What would seem like the most annoying defect, that the carriage double spaces when you are not paying attention, I've turned into a virtue: if I can maintain concentration on arched fingers and staccato strokes it never happens! It's a teaching tool. I would like to fix the bell, as I prefer to type with my eyes closed and invariably run into the right margin.

Heh. Anything not to feel like a lemon? 

I;e sold a few because they were too perfect... I agree with you about the things you just stop seeing.