With similar weight the Sirui is clearly verwindungsstabiler. This can be seen especially as vibration when the legs are fully extended and / or when the center column is far moved upwards in order to have maximum working height (161cm). Likewise, in wind or when you lightly press on the stand when you manipulate the camera. Since giving legs slightly uneven slightly. There is also no hook on the center column for a weight where you can simply attach a sandbag, etc. for added stability. The feet are unfortunately only rounded. There are no twist up spikes contained therein, which just provide in soft ground for significantly more stability. Therefore, one should not leave the stand to full height (161cm) and do not constitute the central column too high.
The screw caps for the extendable legs are indeed smooth, but a bit narrow, so that the extension is quick little uneven. Here you realize the price. Furthermore, also lacks a padding around the legs so you do not have access to the bare metal when cold.
The supplied tripod head is not a "full head" like him Vanguard course (separately) offers. The quick release plate is not pushed in from the front into the holder but inserted from above with a slight tilt. This is then but better than expected. The release plate is made of simple plastic. The head connector has only 3/8 inch (standard camera thread). A 1/4 inch screw as in more expensive tripods does not exist. Unfortunately, a graduation for Panaoramaaufnahmen missing. There is a spirit level vial. The provided by Vanguard for the tripod and compact system cameras is the dragonfly hardly concealed (if one pops up the screen not just in 45 degree position). She's been a good help because not every camera has an electronic level. When furnishing a proper carrying bag is missing. The accompanying envelope is working very very thin and simplest.
As the manufacturer already proposing the tripod for a lighter equipment is provided, for example, a camera system, such as a Sony NEX. A DSLR with a particular bit heavier lens I would not sit on a regular basis.
For 100 euros, with a lighter camera can make good use of the tripod already. For this you have to make compromises in equipment and product quality. What you pay is what you get!