Thinking about speed and possibilities of the language, it seems like a great tool. I never made a Web App with VFP, personally I use PHP and some MySql, but I never had the need to build a big site like UT.
But we´re working on a big project, so it seems like a great option to us.
By two common phrases in his vocabulary, we know Hercule Poirot was a great Developer: his use of "the little grey cells" and "order and method".