I went from the Aeris with REL G2 Subs to the V System about 9 months ago. The V System is in another zip code compared to the Aeris set up (not bashing Aeris as it is a fantastic speaker).
The soundstage width and depth is dramatically improved with the V system along with an effortlessness in the midrange. It also has that bloom on piano and keyboards that separate good speakers from great ones.
The bass is clean and tight like all Legacy speakers and is easily dialed in and is just more powerful than Aeris .The new iV amplifiers are a great match for the V system as well and are an excellent value. I use a pair of stereo units and would not change a thing.
If you have the room and the $$ to upgrade I wholeheartedly recommend the upgrade.