The new seat looks great. THAT is where it ends.  In my life time of 71 yrs, I have installed many toilet seats.  This one slides from one side or the other towards the center of the bowl when sitting. I have checked all hardware and have checked for tightness.  I have had wood seat before and none have done this. I am not happy with this product at all. I will be sending it back. Please forward info to me on process of return & REFUND. Thank you