Wow - I must really be in the minority. I liked their sound effects enough that I used them to replace the standard ones on Stars as well. I don't think there was a single sample in the original Stars set that I kept, I even replaced the warning / attention tones.
I've never played any sites other than FT and Stars so I can't comment on them, but I
have spent plenty of time in live card rooms and for me poker's not poker without the noise of cards and chips. I've always thought FT's sound effects were pretty close to the real thing, minus the incessant chip-shuffling clatter you get in live rooms.
As for the questions about sound effects for when you win a pot or go all in (if they were serious - I'm assuming not but whatever) yes, you could do that but most of the sound bites are used in multiple places and in particular they're the same for every player at the table, so you couldn't get them to play
only when you shove or win a pot