The GR3400 cuts and stores the grass well, but there is one more serious weakness and one minor one.
The cutting height adjstment mechanism is very easy and convenient especially for those needing to adjust the cutting height frequently, but if it got damaged for any reason I suspect repair would be very difficult, and the whole machine would become useless. I there suggest treating the machine gently (as one should anyway) and avoid rough handling especially on uneven ground.
The cable is about 11.8 metres long, which I find too short as I have to plug in indoors. This is easily dealt with, with an extension. But my previous mower, a Black and Decker GR230 (which I confess I burned out!) had a 15.8 metre cable, which was adequate.
Ralph Heaton