I really like this. My wife keeps a list of shows we've been to in a Google Sheet and I try to post a picture from each show on Facebook, so I think we would definitely use this. Right off the bat, I'd like to be able to add multiple shows for a single artist at the same time. I'd also like to add multiple artists for a single show. You might already have these things in your roadmap, but it's making data entry take longer than it should for me. I'll keep my eye on the site to see where it goes.