The overall impression is good. Especially the value for money compared to products of other importers.
In this respect, I would recommend the device to people with average requirements.
In Detail ...:
First of all I want to encourage anyone to look closer at the publisher's website ([...]), the device, as there is a high-resolution photo of the device (size and position of individual buttons ...) and the manual.
The keyboard is good, has a decent stop (/ pressure point). The keyboard layout is designed to be very compact. This some keys are compared to a standard keyboard smaller than usual (for example, Backspace, Space, Enter) and some elsewhere (eg: introduction, Delete, End,..), So as you know it from laptop keyboards. For prolific writer she therefore is only conditionally suitable. For surfing, emailing and from time to time a letter fully sufficient.
The trackball is in my eyes a slight weak point: The ball itself is quite small, made of metal and easily slips by if you do not exert a slight pressure with the finger. I hope the effect is not enhanced with age.
The position of the mouse buttons on the top corners of equipment is used to, especially the right. A second set of keys at the ball itself would have been good here. The ball turns off after two minutes of inactivity even from to protect the batteries. Unfortunately, he will not automatically turn on again, then when you use it again, but you have to press the button below ... :-(
The scroll wheel is a little too deep. It liese serve better if it would stand out a millimeter to top of the housing.
Despite the unit's all good in everything, and I would buy it at the price at any time.