We used to use these at University many many years ago. They were loud as hell, had huge clunky keys, but the more you used them the more you secretly realised they were pretty nice to type on. It's probably not ideal for someone like myself who types at about 110/120wpm, but makes a lot of errors (self taught, bad technique, but it's all about the speed really) because of the insane amount of noise, but hey.
However I never thought that 10 years down the track I'd be coming across fan pages for the things.