Anyone Tried Free Spider Solitaire on SolitaireX?

I’ve been wanting to play a good free Spider Solitaire game online, and I’m looking for recommendations. I’ve tried a few random versions in the past, but some were full of ads or really clunky. I recently came across a site called SolitaireX that seems to offer Spider Solitaire for free.

Has anyone here tried this free online spider solitaire before? Is it smooth and responsive, or does it lag or crash? Do they offer difficulty settings, like one-suit, two-suit, or four-suit modes? Can you undo moves or get hints if you're stuck? Also, is it truly free to play, or are there restrictions after a few games?