Product review (4 stars): You'll need a roll of aluminum tape, but this is otherwise pretty good!
There aren't a whole lot of options out there for a safe, low-profile dryer vent. This is about as good as you can expect. You definitely WILL want to get a roll of aluminum tape to seal all the seams and joints, and we also needed a very short (about 10cm) duct extender to bridge the distance between the dryer connection and this duct inlet. Once all that is in place, it has worked flawlessly and -- most important to us -- it gives us the peace of mind that it is much safer than the accordion-style hoses, which are technically not even allowed by our local code.