It held. The system ran for about a week and a half during finals (not 24/7, only when I needed to use it but for hours at a time) keeping the water between 19 and 25C.
High side pressure never went over 160psi.
It could not however take both the CPU and GPU folding (gpu overclocked), then the water temp would gradually increase. I only tested this once, then lowered the gpu down a bit and only used it running for web browsing and the occasional game of starcraft 2 beta.
While I do agree that I need a larger condenser, this one did hold. Until I managed to puncture it .
EDIT: Did you even read my response past "1 hp"? That condenser is shot right now.