Very easy to assemble and mount. I had absolutely zero issues with Corsair Link. With a little bit of reading, i got a few of the quirks worked out (Getting it to stay 1 color needs a setting of 1 in Green and 1 in Blue, not 0 in each). The only thing is the stock fans can be LOOUUUDDD. I replaced them with some better looking LED fans.
This thing is never worth it. The thermal performance usually underperforms the stronger 12cm air coolers for a ridiculous price, and the primary argument for using an AIO - ease of installation - is barely a factor anymore since coolers like the H7 are super simple to install and pervasively compatible.
I went with the H80i because it was on sale and looks nicer IMO than air coolers. The software is a little buggy, but it has a lot of options that you can mess with.
I was dissapointed by this cooler, seeing the thick rad made me believe it would be more capable, but the cooling performance isnt all that great, it makes alot of noise when your fans go above 1100 rpm and the corsair link software is extremely buggy.