Over the past 10 years I've pretty much used Mavic Ksyrium Elite wheels. I'll get about 3 seasons (over 10,000 miles) on one set before the rear hub/free hub interface fails or the rim gets a crack in the spoke. I got a little bit tired of the rims cracking at the spoke/nipple and had given up on Mavic until a friend recommended the Exalith wheel set.
I'm now on my 2nd season and so far I am very impressed. They seem very durable, incredibly stiff, and roll very easily. The benefit of the braking surface for wet weather was not a selling point for me, as I live in the high desert. I mainly got these wheels due to the Exalith treatment of the rim surface for durability. I ride about 50/50 dirt/gravel and pavement and find they are holding up very well and still look brand new after about 2,500 miles on them. Due to the price, I swap them out for less expensive Mavic wheels in the winter in hopes I can get a lot of miles out of them.
I'm still on the original brake pad.
I would give them 5 stars but the model I have for 2016 has a 15 mm inner rim width. I would have liked the 17 mm inner rim width on the newer model to gain some extra tire width, but then again the new model has yellow accents and the model I purchased has white accents, which makes them look so much better.
If I had to get another set of wheels, I'd consider a custom build, but then probably get the Exaliths due to how much I like them so far.
Lastly, I got rid of the Mavic tires before my first ride and put on some Clement Strada LGG 25s.