Beneficial but cumbersome tool.
(+++): Useful vocabulary choices and challenging multiple choice from a list of ten. Uncomplicated, if a little homely, interface.
(---): Speeding through the test is awkward. To do so you must either jump back and forth between mouse and keyboard to navigate - a click each time to activate the drop-down multiple choice list and although you can scroll down the list with the arrow keys, you cannot select using the numeric pad's enter key, though you can with the return key - or you must place both hands on the far right of the keyboard, using your left hand to hit the return key. ProVoc, on the other hand, allows you to go through these tests very quickly with one hand on just the numeric pad - far more desirable and ergonomically comfortable. Spanish Vocab has no import feature and thus new words must be entered manually, one at a time.
As this is a version 1.x release, one hopes that this program continues to evolve, and will include better import options as well as other language choices.