I've used Ulysses for 3 months now, and moved all my writing into it. I've tried Copyright, Devonthink, Jer's Writer (a favourite) and Scrivener (another close favourite); in the end, decided to go with Ulysses.

My reasons can be summarised in 3 words: productivity, speed, pleasure.

- Clear interface that speeds up work. I can see all I need on one window. I can view two documents in one window; helps editing a lot.

- Full screen. The best implementation ever. After this beauty, I can't use this feature in other programs.

- Formatting on export is wonderful. First most powerful formatting tools that meets all my needs and saves tons of time.

- Little under-rated 'featurettes' here and there, e.g. coded itallics, superb word counting features, typewriter scrolling (the reason I bought it in the first place), etc. All these save time and help focus.

- Stability. I know I can rely on quality here.

- Good customer support. At first I was put off by the lads' sense of humour, but then it grew on me. A very friendly, supportive team.

For improvement wishes, I'd say I still miss some sort of chapter structuring and chapter sorting on export. But, as I understand, this will be added in the next version, so I don't sweat this too much.

Highly recommended. Good job by the design team.