Not a bad little printer for the price. I had problems with it initially as the label wasn't being fed through. After using the cleaning tool it comes with, to clean the roller, I haven't had any more trouble with it printing.
The printer does come with 4m white paper tape cassette. I also bought the
Dymo Letratag Starter Kit x3 Tapes which comes with a yellow plastic tape cassette which I use to stick on the plugs of different appliances so I can see what to turn off in the sea of cables!
As with a number of these printers, the labels do have a big border around the lettering. For example, just printing "TV" on a label on the medium sized font, results in a label measuring 37mm (1½ inches). There is no way to change the margins.
The unit is approximately 16cm x 14½cm x 6cm.