Hi, I had mine since last December and it's held up well even in unforeseen wet weather.
Care tips:
1. After usage, clean the exterior with non-alcohol wipes if in contact with water (Not a must-do but just to ensure the longevity of its original condition). Tuck the chains inside the bag and always store it back in the dust bag.
2. Do not overstuff it as it might cause the calfskin leather to lose its shape and resale value. If you look at preloved Loulous on consignment stores, there are some that sag over time.
3. Get a bag organiser (doesn't have to be Samorga or an expensive one) to prevent dirtying the interior of the bag.
Issues:
1. Despite loving bags that are compartmentalized, it restricts the type/limits the amount of items you place inside and you'll feel like you're playing Tetris. Especially if you have a bag organiser, it becomes very narrow.
2. The magnetic button is really secure but at the same time, it's hard to open and might feel like you're ripping it apart (at least for me.)
3. The handles will mould into the shape of your shoulder making it look curved. Not really an issue but it wouldn't look as straight as it once was when you first bought it.
Otherwise, a really great bag that stands the test of time and I would even go as far to say it's the classic bag for Saint Laurent. Hope this helps make your decision!