Nice boot liner if your lifestyle demands it. Mine doesn't.
Over the years I had just a couple of spills in my E90's boot. Nothing a good stain remover & steam clean couldn't remove. I also like the nets in the F30. Very flexible and stretchable. Use them a lot. Very useful.
328i M-Sport, Estoril Blue, Carbon XP 35 Tint, front heated seats, black Dakota, Sports Suspension, Anthracite Headliner, HUD, Pro Nav, Sunroof, hk 600w, Bi-Xenon, 19" 403M wheels, Reversing Camera, DAB+, Xenon, BT Ext Connect. JB4 on Map 2 with Catless DP produces awesome performance in Sport.