Weakness ?
Not really. If you read XS they slam anything thats not extreme, but for general use I would think its just fine. I would love to have one.
Shoot it might even be good enough for benching with.
Problem with GPU coolers is how the Evap is made. For a GPU Evap the suction/cap tube needs to come off at a 90 degree angle if you are going to do SLI. Not many are made that way.
So for the price of that unit vs how easy it would be to find one by a custom builder I think it holds up just fine.
Here is one that Jinu made called BIOHazard. It's a sweet unit
Opps thats a Dual CPU unit, sorry about that