Pros:
The cardioid pattern is very helpful with handling feedback and background noise, the sound is very clear and pleasant, gooseneck boom arm is super useful for proper adjustment, and build quality is what you'd expect from a nearly 600-euro Sennheiser mic.
Cons:
The fit is rather strange. I've used this mic on seven different speakers and three of them had the mic falling of their ear(s). Nobody was jumping or behaving strangely and I've personally put the mic on each one of them. I really can't have that happening at my event.
The boom arm is way too long for people with average or smaller sized head, so it needs to be pushed all the way back, which makes it both look strange and get stuck in long hair.
I've used it myself for a 3-hour talk; I have a large head so the length of the boom arm wasn't a problem, but the pressure behind the ears was very uncomfortable. This was reported to me by two more users.
In conclusion; I really wanted this mic to work, as I want a high-quality cardioid headset, but I simply can't keep this one. Especially not for this price.