Mishimoto X-Line Radiators?

[Zino mori]

Does anyone have any experience with Mishimoto X-Line performance aluminum radiators? I have some problems with my s14 and trying to keep it cool. I recently did a complete coolant system overhaul, but still getting too hot. For some reason I slowly climbing in temps while driving. I think radiator is not performing well, so I am planning to replace it with Mishimoto. If you guys have any better recommendations, please let me know.

Thanks..