Despite the fact that there are actually a lot of great people working at Wayfair (I had very few negative interactions), the overall company culture in terms of professional development, career progression etc. is very poor.
They have a complicated review cycle process, which most people hate, and although it is comprehensive (so takes a lot of time to complete) the final decisions are not transparent and often the outcomes don't seem to reflect the performance of people in the team. This makes it really difficult to get a promotion, unless you already have a close relationship with people in management who can push for your promotion, and there are no pay increases unless you are promoted - so basically expect to remain on your starting salary for a long time.
They also actively encourage churn in the company, focussing on pulling in new talent (often with consulting backgrounds), instead of developing people who are already within Wayfair, especially when it comes to hiring for management level positions.
Earlier in the year there was a restructure resulting in a lot of lay-offs which were announced very suddenly, and were probably the result of over-hiring in previous years as Wayfair focussed on fast growth of the company. In general this has not created a positive atmosphere in the office, with uncertainty about a lot of roles which were changed as a result of the restructure.
That's why in general I would say Wayfair could be a good place to work if you are looking for a first job in Berlin, as there a lots of positives to the social and team side, but definitely don't have expectations of career progression within the company as it can be very difficult and the processes are not transparent.
