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I've been using Applixware 4.2 then 4.3 to write papers and such for a year and a half. Bear in mind that I've only used the Words module, not anything else.
In many ways Applixware is a superb program. Great interface, great looks, multiple-language support, including dictionaries and thesauruses (important for a Spanish major like me). The only major deficiencies are 1) inadequate filters support (Word 6/7 import and export is pretty buggy; I hear 4.4.1 will do a much better job, and handle Word97 too) and 2) missing some basic features like a simple way to do single/double spacing (you have to type in the measurements yourself).
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Another notable omission is word count; I used a macro as substitute.
Despite the flaws (4.4.1 did not fix the inability to do simple line spacing, and I was told by the company that there were no plans to change this), Applixware was good enough. I produced .rtf files that I printed via Word on campus laser printers, and .pdf files for job applications during senior year.