I am running Textmaker on the 6000, which perhaps explains the difference in my experience and some others above in the thread if they have 5x00's.
After a few tweaks to the initial settings (mostly mentioned earlier in the thread), everything works quickly and reliably. The program loads fast. With small icons set, the menus are unobtrusive and snappy. There are plenty of options for viewing depending on your needs at the moment and eyesight. I've loaded 150+ page Word docs with lots of formatting, headings, tables, and graphics. It takes thirty seconds or so to load, but after that moving around in the document approaches desktop speed. Abiword on my C860 with pdaXrom RC5 died trying to load this document and was always sluggish moving around in documents. It sometimes crashed when it hit formatting that it couldn't handle. The only thing that Textmaker couldn't handle so far was a MSWord graphic format specially for organization charts. To my mind, that shows what's wrong with MSWord, not Textmaker. Textmaker handled it gracefully, inserting a placeholder and a note instead of crashing.
I haven't spent much time with Textmaker yet, but at the moment this program is looking fabulous.
One caution: Textmaker support never answered my emails when my order was delayed. However, when I logged onto the forum at their site, I got assistance quickly. I've seen some others that apparently had a similar experience.