In all honesty, when it comes to being able to place a bet that the card stock will be lovely- they really are fantastic. Best big tarot company for quality. (Which excludes all the self-published people, because there are just way to many fantastic ones to list.)
I'm with Penthasilia on LoS quality.
I personally think LoS adds some sort of secret sauce into their card stock that makes their decks a pleasure to shuffle with my tiny girl-hands. I think that's why I own so many of them.
In recent times, they have done a truly remarkable job with their newer decks by revising some of their standard design practices, thereby, making me excited to check them out. For example, they've put out fabulous borderless/nearly borderless decks that really do highlight artists' work. That Golden Visconti the OP is checking out is quite nice as well.
The only tiny gripe I have is that I wish the card backs were consistently interesting. The Fairy Lights card backs knocked my socks off, but The Secret Tarot and Minchiate just have a pale image of one of the cards in the deck...not that nice.
Granted, they're not for everyone. Personally, I've been getting excellent readings on the "spaced-out muppet deck." Hands-down, BEST description I've heard of that deck, Willowfox--I nearly snarfed my Dr. Pepper when I read your post.