The tour was very interesting and the guide was excellent and for that I give 4 stars.
However, the one negative we had was that we felt it was far too crowded, the corridors of the museum were too narrow and struggled to cope with the amount of people.
Probably better going during the week rather than on a weekend for that reason.
Still very glad we went and would recommend.
An interesting and easy to walk back to the city afterwards, through the Ghetto area via the memorial, over the river and through Kazimierz area.