Decent, but probably not worth your money

This version compares pretty well to the abridged version of the Collins, but is a long ways from the unabridged version, whose price it more closely reflects. For those serious about French, the unabridged paper version is much better for your money, as is a cheap iPhone French-English dictionary.
Also, an irritating bug makes it difficult to see any pronominal verbs, and although they informed me several months ago that this issue was to be rectified in a forthcoming version, there have been no changes.
Altogether, it seems as if Ultralingua isnt going to update what is currently a mediocre, buggy dictionary.

MattCLane about Collins-Robert Concise