Easily assembled and I was ready to play .Having just had to "skip" my 90 year old Challen Baby Grand I was really worried. I had done days of research on Graham's web site and decided that Yamaha407 would be my choice here was the moment of truth. I switched on, pressed Grand Piano2 , Normal and Room and played. I was in tears it was so wonderful. There is no better review than that and I now look forward to many more years of playing. Thanks.