We have been looking at BY because our first choice of the West End Sofa by H and M is too deep for our space. BY has a similar sofa called "West Haven" I'm not real keen on BY really but, we love the lines in that sofa. If we should go with BY do they have seat cushion options? What I found when sitting on sofas was that BY sofas mostly sat "okay" and the H and M all sat like heaven. It's real hard to adjust yourself to BY once you've sat on a few H and M. Most of the BY I sat on were "Premier down" cushions...I'm wondering if it's spring down I prefer and if that's an upgrade? Is it possible to get the seating on a BY to equal a H and M or nearly equal it? Opinions?