Any suggestions about Franklin Portable Language Translators?

I am a Spanish student and i am planing on buying Franklin Language translator to aid my learning. But after seeing many people has various views over them, i am in doubt. Can someone help me to find the truth about these devices before i go buy them?. I will tell you my most important goal in buying device, simply translate some words and phrases from English to Spanish with ease and speed. Will i be able to do it?. Please help.