The Good: Durable and stiff without breaking the bank
The Bad: After two seasons of riding I can't think of any so far
I’ve been running the Mavic 823’s for two years now without any issues. These truly are an awesome rim both for durability and come at a very reasonable price point. Although they may not be as flashy as some of the other rims on the market such as the Deemax or Easton rims, these really do get the job done and get it done without any issues or maintenance involved. The rims came stock on my bike and they were laced to WTB laserdisc hubs and from day one it was set and forget . After riding for 2 years now the rims are still straight, spoke are still tensioned correctly and there are no flat spots on the rim. I’m not a very smooth rider so I tend to be a bit hard on wheels but even after numerous cases and flat landing these rims stay true.
Another great thing about these rims is the ability to run these tubeless. I’ve been running mine with tubes but next year I may try a tubeless setup so its a bonus that these are already setup to be run either with tubes or without.
If you are looking for a durable and stiff rim that you know will last a long time, or you’re someone that abuses and goes through rims a lot I would definitely recommend these as with my experience they have been an amazing product.