We don't use it at work so I can't say I've done anything at scale, but I was very happy with it making this internal-ish website for work http://heyzaphackday.com/hackdays
I don't think I had a single 5xx or 404 when developing it, and last I checked 1 500 error in production. I know it's a small site, but it's still pretty unlikely that I'd make a small Rails site without typoing something/misremembering a SQL column name/making a bad assumption about e.g. always getting a value from a cookie.
I don't think I had a single 5xx or 404 when developing it, and last I checked 1 500 error in production. I know it's a small site, but it's still pretty unlikely that I'd make a small Rails site without typoing something/misremembering a SQL column name/making a bad assumption about e.g. always getting a value from a cookie.