How does this compare to the cost of the Corsiar H110i?
When it comes to 'best' closed loop coolers, there really isn't one that I would recommend. The perception is that these coolers perform at a level of normal watercooling loops at a fraction of the cost, which is incorrect. Yes, they have 'liquid' and follow the same principles that watercooling does, but the performance relies on running the fans at maximum speed to make up for the poor flow rate and the aluminum radiators...and the fans are usually quite loud. I measured the H110i GTX at 60+ decibels on max speed. The H110i pump doesn't even move 1 liter of liquid per minute - most decent watercooling loops move 0.75 or 1.0 (or more) gallons per minute in a closed loop.
Swiftech H220-X and H240-X as well as the EK Predator series are the only units I would recommend.