I've heard HE Top loads can ruin clothes.
My mom got a top loading HE washer a couple years ago from Home Depot for her house. The caveats:
-While you would think not using an agitator would be gentler on clothing, I've had numerous collar buttons yanked out of my shirts. Which virtually never happened with agitator washers. I don't know if I'd say they "ruin" clothes, but the manual had a lot of cautions about reminding you to zip up and button certain things. The HE water jet process seems to sort of thrash clothing in a way that can pull and yank on certain things (like collars, apparently). Beyond that, I haven't had any problems with HE damaging clothing -- just be sure to use an HE detergent, not regular laundry detergent.
-If you overload or unbalance the load, sometimes it will just stop in the middle of a load. If you're not there to see the weird digital readout gibberish that warns you about it, it can be frustrating, esp. if it gets stuck in wash cycle (i.e., soggy clothing). This hasn't happened to us in several months now -- we're just kind of careful about how we load it.
-It's a minor inconvenience, but you have to use one of these HE washer cleaner capsule things, maybe once every 15 washes. The machine has a little reminder light about that when it's time to use it.
-While the HE washer we got was billed as very quiet, there are times when the water jets or whatever make a very peculiar sound, very different from that of an agitator washer. This is considered "normal." Overall, it's pretty quiet in operation.