Ask HN: Which error reporting tools you use for your JavaScript projects?

I've been using Sentry for a while, but looking for an alternative

Things I don't like in Sentry: 1. Custom error data is not indexed, and can't be queried 2. Too much noise: getting alerts by error occurrence, even though it happens to small number of users, other then getting an alert for errors that happens to many users 3. Error merging is a bit buggy, even though the error name and message is the same, and the stack is relatively the same, I need to merge a lot of errors manually

What do you use for your apps/projects?