My floor mats were pretty worn out and missing clips. Started to become a hazard when it’s sliding under the pedals. Overall I am pretty happy with these. Not sure I’m a fan of the style (running the mats down the side of the seats) but overall the quality of the mats seems good.

 

What did you use to hold the edges down? I have these and they don't hold their place in points. I tried double sided tape and it eventually pops back up

 

These mats have little tabs all around I just tuck under the trim to hold it in place.

 

I'm with you, not a super fan of the style, but they look like good quality. I tried to buy OEM replacement mats from Flying Spur, I got cheap knock-offs that don't even fasten to the anchors. Now they're stained and don't clean all the way. $440 from England, not my favorite purchase. I may do your diamond style, my mats are already too stained to live with