Grills look sonically terrible. With a lattice work that covers the whole tweeter. There is a measurable differences without them on. I wouldn't used them. But the cross over looks ok and are more complex than many others at this price point. See the full album for details.
From about 100hz - 3.5khz the speaker plays pretty flat and neutral. But that cone break up spike remains noticeable to the ears. If it would be EQ'd out or if a xover change could notch it out then I think the mid range driver would be pretty ok.
However the early roll off of the tweeter darkens and dulls the sound. Not much in the way of "sparkle" going to be happening here. The terrible grill really accentuates this killing everything after 8khz.
Nothing particularity exciting of the off axis responses. Seems to roll off pretty predictably despite the lips on either side wall. Getting below the woofer and tweeter causes a large null at the at the cross over point.