Some years ago we built some custom PC at work for out software developers with some special needs, and I also build some low-end servers for mostly Virtualized testing stuff.
The DDR3 RAMs were ok, solid build, and stilll all are going well after 6 years now. The nice thing about Corsair RAM is, that it is quite common and easy to get (I am in germany), AND that most quality Mainboard manufacturers have them tested on their QVL list- that saves some hassle when choosing which RAM to buy...
But yes, lots of that other stuff they do as they expanded their business into gaming kids is not innovative- lots of blingbling trends that the customer pays their money for. And most of that stuff is r ebranded- at least some of their PSU series were made by quality OEMs, although I don't know what they changed to maybe chop off some of the original price.
(I nearly exclusively use Seasonic now as PSU manufacturer for about I think 7 years now...)