I use this device in order mainly to label cables. The quality is not as an expensive laser printer but very, very good! Since the tape is easily laminated, it is also water / sweat resistant, which I like very well. Expressions in bold / bold I find the most sense, since the spent tape anyway depends only on the length, not by the height of the font (= width the tape) or the width of individual letters lines.
The symbols I find cute but not always necessary if you use together with writings. They are much more useful when you print out a long ribbon with symbols, and some space in between, and individual symbols cuts. With this trick you can minimize unused band segments. So best to print multiple labels simultaneously, not consecutively.
More than this, I did not claim on the device, and therefore I am very satisfied.
EDIT: The PDFs for instructions, specs, etc. can be found at global level. DYMO. com