First of all the salesman sold us the wrong type of lift for my size of bath, so the first engineer couldn't fit it. Reorder different lift. When 2nd engineer fitting new lift need spacers because of shape of bath side, he had no spacers. Couldn't use lift.Third engineer not enough spacers but could use lift, then the screws in floor came lose so couldn't use lift. 4th engineer came with another spacer but short of a correct screw. 5th engineer came and finally started again from scratch and fitted it securely. How could I recommend this firm after such an experience when other companies sell the same machine .