In the office of tesa tape dispenser is used for some time by myself. For this reason I am so confident in him. With its rubberized feet and his heavy weight can be processed a tesafilm precisely and very clean with only one hand. The cutting blade is always sharp in my experience and therefore can not agree with others, the opposite opinions.
Nevertheless, I have to say that I use always original tesa movies. Cheaper alternatives may well have been produced in nature so that they can be perhaps a little "tough" behavior when tearing and therefore that, other impressions to Tischabroller come about. But is just a guess on my part.
Conclusion:
A bit more expensive Tesafilmabroller, his money's worth, however. It operates clean, even if only one hand is used and makes on the table longer ago than the cheaper plastic representatives.
In addition, due to size and weight the risk is low that the dispenser "just comes off or is sometimes just moved" :)