ZTE Blade/San Francisco memory cards that work

I'm looking out to extend the card memory for my ZTE Blade phone. Can anybody who has experience with this tell me which SD cards (preferably 16GB and above) certainly work well for the San Francisco/ZTE Blade phone? If you're using this phone with an SD card model that works, please tell me which one. Note: many people seem to report that some SD cards do not work well with this phone. Thanks!