We bought this model because it has a zipper. We do not use but have it open so that our children and one selbsständig can get. Therefore I can not comment on the quality of here often criticized zipper.
We have about 3 years ago a playpen from Hauck with same folding mechanism bought because it was recommended to us by our friends. Otherwise I was not buy anything from Hauck. Later we bought at a distance of approximately 1 year, two beds this trip because we are satisfied with the running steel. The last travel cot we had to send back because did not work with the first delivery of Falltmechanismus. In the 2nd delivery, everything was OK.
Ie the Faltmechnismuss work though sometimes not immediately.
I first wanted to only 3 to 4 stars awarded but one must also consider the price. The cot has its weaknesses, and it is from Hauck.
1) the folding mechanism may not work right away but to be I never had it more than 2 times trying (here I wanted to pull off 0.5-1 point but do not do it because maybe it's up to me)
2) 1x bed was broken. Spare was OK, can happen to anyone (1 point wanted deduct but since spare OK I do not do it)
3) According to many others is the zipper a vulnerability. I have read the reviews before known and other more expensive beds have the same problem (Have the problem is not, however, I use the zipper not ... still no reason for point deduction)
I have known the weaknesses already after buying the running steel and yet buy more products. Would be merkwüdig to forgive 3 to 4 star ?! That's why it has become 5 stars