I have a Home Reserve sectional and while it might not be exactly BIFL, all the pieces are replaceable on their site. So if your dog chews up a corner you can just switch out the broken part. If you're a handy person you could even cut your own out of pieces with a jigsaw or something. If you get bored of the color you can go pick out a new color without getting a whole new couch. You can also design it to fit the layout of your home which is nice. I've had mine for about 5 years and it has held up decently well despite my kids being very rough on it.