Got these wheels as I wasnt quite ready to drop the full $2600ish to get Enves, and didnt really trust any carbon wheels lower than that. First thing I noticed was the engagement. I've read about the 3 degree engagement on paper, but always just assumed that it was a lot of marketing. Even the industry stalwart, DT Swiss 240 with its 20 degree engagement, seems really slow to hook up compared to I9. The weight of this wheelset is adequate for its width, and having a 24.5 interior width allows me to run 2.3 and 2.4 tires that fit nicely. One additional thing to add is that these hubs are LOUD. Whether or not you like loud freehubs, its an additional benefit on crowded trails as its hard for people not to hear you coming when you are coasting. These wheels come with rim tape and valve stems already pre-installed, and setting them up tubeless with Maxxis tires was a cinch that i was able to do on my first try.