Positive:
Good construction, large, lightweight, the sensitive surface maps to the entire screen so you can easily orient yourself (you can adjust it differently but I don't see the reason), you can rotate it 180 degrees if you are left-handed so that your hand doesn't fall on the buttons, many buttons for customization, it senses the pen from a height of 1+cm and also senses pressure (impressive for airbrush tools). The pen comes with a base that contains 8 additional tips.

Negative (which is not the device's fault):
There was a slight lag when I tried it on webex whiteboard (it's been years now) - you start writing and it doesn't write immediately... it takes about 1 to 2 mm before it starts writing. In 10 other applications that I used it on, it instantly responds to touch, so it's not the device's fault. Of course, the truth is that the whiteboard application of webex is not suitable for writing text because it creates objects, and when, for example, you try to draw a horizontal line on A, the cursor grabs the segments instead of drawing a line!!! In webex, you can easily only do general annotation. Of course, webex provides another tool for typing text on the whiteboard (you type it). These are for those who have webex in mind for online classes.

In Paint, Photoshop, using the pen in a PowerPoint presentation, you can write as if on paper after 1-2 days of practice. My daughter (10 years old at the time) easily drew a freehand drawing after using it only twice. Overall, satisfied - and for 90 euros with shipping from DE when it was 130 euros in Greece, it was a worthwhile purchase.

2021-01-23: I installed Microsoft Whiteboard (free from the MS store) and I think I won't use anything else! It blends very well and the MS Whiteboard is superb.

Highly recommended along with MS Whiteboard.