Klipsch loudspeakers have a distinctive personality that is not for everyone, but is remarkably consistent. It kind of boils down to "if you like one you probably will like them all, and vice versa" so I would simply suggest you audition a pair of similar Klipsch speakers and decide if they sound OK to you; if they do, you can probably buy used Klipsch speakers sight-unseen.
That is beside the point others here are making, which is this particular deal is almost impossible to lose on, since even if you hate them, you can probably resell them at a profit if necessary.
The products themselves offer good value and in my opinion make good candidates for Home Theatre and particularly good options for the front 3 (Left, Right, and Centre).
Don't let detractors put you off the horn loaded technology Klipsch actively promotes; they have put enormous resources in their unique designs and have developed horn-loaded drivers almost single-handedly and to good effect.