Helikon or Shelter 501/901 ?

It's time to upgrade from the Blue Point Special that I've been using for longer than I care to admit. I have a Well Tempered Classic Table & Arm. I'll never get to hear either the Helikon or Shelters in person before buying, so any advice would be greatly appreciated. I'm trying to achieve that "the musicians are in the room with you" goosebumps experience that good analog can make happen.
Also, does anyone have any experience or thoughts about
using a Tom Evans "the Groove" phono amp with the above Cartridges?
Thanks - David