One final point on suspension. Just like your car, what you don’t see is more important than what you do see and even if a piece has a quality suspension system it will do you no good if its too spaced out.
Manufacturers who cut corners space their springs or straps further than quality makers of upholstery. Support should be close together and evenly distributed across the piece. To test this, remove the cushions of the piece and press down. You should feel even spacing and consistent resistance. At Mister Robert you won’t find poorly built suspension.