It has a friendly sort of sound. If
Brandy makes a comeback,
Sherry might not be far behind. I think I'm too old to really appreciate it though, because it was a fairly common name when I was growing up, so it's overly familiar to me - very boring.
I don't know if I prefer it, but I am most used to the spelling
Shari, because that's how most of the girls I knew spelled it.
Sherry looks too wordy to me.
Sherri is kinda fun.