These look really nice, pretty accurate in most cases. The only problem I would foresee is that they are all carved with flat backs, while many of them will need to be mounted to curved surfaces. Still worth it if you do not want to carve all of the elements yourself!
Here's a model that was decorated with the figure-set. Sure Looks tempting to me. What I don't like is the uneven bottom line of figures at the very bottom of the lower Gallery. But it should be in the modeller's abilities to sort this out.