We used to go there a lot when it opened a few years ago. Then it became a place we didn't go to at all, as the service as well as the food became quite bad.
So we were quite pleasantly surprised when we went there last weekend to give it a shot. There are new staff members and they are taking good care of their guests. Sometimes it takes a while for them to see you, but they are funny and know what they do.
The menu is still the same as years back, but it is a good one with many classics. Only the NY Style Steak did not meet our expectations. The Steak Tarar however is really good.
So, yes, one can recommend the Buffet Kull. Just make sure to make a reservation, and be careful with the online reservation service, as this might not work correctly.
If you own or manage Buffet Kull, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.