Congrats on the first playthrough! There is something legitimately special about experiencing a classic for the first time. I feel a similar way when I hear people's enthusiasm for Raiders of the Lost Ark, Alien, etc.
It's a good game. Though I don't like it nearly as much as most others - and prefer several other, prior FF games over it - I can't pick it apart too much. I feel the same way about Ocarina of Time. Also a good game, but nowhere near my favorite Zelda. But I believe that puts me firmly in the minority - in both fandoms
As much as I will always adore the original Final Fantasy for its custom party creation and D&D style "spells per day," Final Fantasy 4 (or 2, as it was called when I first played it) was an experience that truly knocked me on my butt. I couldn't put it down. Picked it up in the Summer of 1992, and didn't do much else until September or so...
When I hear people gush about Final Fantasy 7, I think of my own warm, fuzzy feelings for Final Fantasy 4. And looking at it from that angle, I think we're all on the same page. You only really get feelings like that a few times in a lifetime, and it's important to recognize and cherish them when they come along. Sounds like you're doing just that, right here