Single back cushion vs bustle back?

Hi and thank you for this amazing forum! I'm in the process of selecting new furniture for our living room. I think I've decided on a sofa, but I'm having trouble picking out the other items. I'd like to find a leather recliner for the room as well, but I'm attracted to the more modern styles. One thing I've noticed is that a lot of the modern style recliners have a single back cushion. I prefer the looks of a single, but I'm worried about it becoming flat or slouched over time. I assume the bustle backs hold their shape better and will look better long term. Is that true?

Bustle backs are all about comfort - they are the best for most people in that regard. Take a look at a split back unit, that is sort of in-between. Not as much bustle, and yet really good on comfort. Hancock and Moore Manning & Monaco units are good examples of that. Single cushion backs tend to "pocket" a bit more with use and time.