What will I expect to notice with a recap on a Stasis 3?

I recently purchased a completely original Threshold Stasis 3 amplifier. After blowing out the tremendous amounts of dust and visually inspecting, I hooked it up to my system. It still functions and sounds quite good. The bass is sloppy, female vocals are excellent and some mids get a little muddy at moderate volume. It is really pretty easy to listen to with minimal fatigue. Actually, sounds closer to my Conrad Johnson tube amp than the Krell. I expected a little more slam out of the Stasis but certain that some extra capacitance will help remedy that. If I were to recap, what improvements should I expect? Is this amp worthy of a rebuild? Is this amp a happy medium between an ultra analytical Krell and a gooey tube amp?