Currently letting prime run to see if I'm stable at 4.1ghz.. I tried getting 4.2 at higher voltages, but it would BSOD during prime after 3-5mins no matter what I did.
To the main point - on the eco r120, I was getting core temps pushing 52-58c and CPU temps pushing over the limit at 1.472v with 4.0ghz.. The rasa kit allows me to push higher volts without much of a temperature increase, so I'm definitely satisfied.
I'd recommend the kit to anyone interested in getting phenomenal clocks with very low temps... The installation took a while, but everything went smoothly and was straightforward for the most part.
I only regret going with clear tubing.