i have a radtec item, i cannot comment on comparison to other 'coolers as i simply havent tried any. i bought this a few years back, when radtec was the only 1 i could feasibly afford (prices have dropped drastically since then dammit!)

what i will say is it appears to do its job perfectly well, and has good build quality. my only issue with it is the brackets set it back on to the rad, meaning the only option is for the fans to sit out front. i realise this was done to allow the fans to clear without bumper mods, and people say the fans out front works fine, but mine got quite hot, and i think id like to see how hot things got if i cud run the fans on the rad in between