LaCie is pretty darn good.
Over the last few years I've managed to collect a nice pile of LaCie hard disks. I started with a D2 Bigger disk (500GB) which I use to backup my network. Then I added a 250GB D2, then another one, then another one. Then I bought a Porsche Design drive because it was perfect size to fit in my safe deposit box. That worked so good, that I bought another one of those, too.
To sum it up, I have four D2s on my desktop and two Porsche Designs in my safe deposit box. I'm a digital photographer, so it's nice to have a complete backup in a safe place.
I won't say that every drive I've purchased from LaCie has been perfect (got one that failed on the second day), but their customer service is top notch. I've been buying hardware for over twenty years, and they handle probelms in a rarely seen way.
The warranty could definitely be longer. The prices could be a tad cheaper. They could be a little less noisy (though they're definitely not bad). (Keep in mind that noise that increases with time is usually caused by a fan getting dusty. I've had much noiser drives).
I also have that nice little rack which keeps the drives neatly stacked on my desk.
On a scale of 1 - 10, I'd give them a 7.
Whatever you do, don't buy a Maxtor. I've seen and heard about lots of problems. And Seagate is always a solid performer. I have two WD Raptors inside my box, and they're pretty sweet, too.