I was hemming and hawwing about resetting for a solid month or so, and finally bit the bullet yesterday after reading much discussion on it, both on here and off-site. The overwhelming advice/response given to those considering resetting, on other sites, was just to flatten the island... but I'd done it so many times and still wasn't happy, tbh. I was tired of the island name, had some of the same villagers from the very start of the game, had most of the items that I'd wanted... but nothing I tried seemed to spark the old love I had for my island back when I'd first made it, so I went ahead and reset (with the help of a wonderful user here who held some of my stuff for me - thanks again, if you read this!).
In the hours leading up to the reset I was a little nervous, thinking that I'd have to give it a million tries before finding a map and starting villagers that I'd like, but to my great surprise, the very first map I picked was absolutely perfect for the kind of landscaping I've wanted to do. My previous island had Resident Services in a really awkward location with just the thinnest strip of land beside it and I found it impossible to decorate to my satisfaction. I now have more than enough room to work with.
If anyone is seriously considering resetting, but not sure whether to go ahead and do it, I say give it a shot. If your choices are, like mine, between not playing at all because you don't like your island, or finding an excuse to invest more time actually playing the game while building up a new one... I think the solution there is obvious