Dataloader.io

Dataloader is a useful fit for any complex enterprise-level ecosystem. It helps manage thousands of data and pull it in single export and reduces the hassle to manage on separate sheets and excel. Multiple such migrations can be scheduled without having to manually manage them; The connectivity is seamless and makes it easy for teams to work with.

If you have an operation in your organization to perform several bulk operations on data like insert/update/upsert, etc., one should use dataloader.io instead of other tools. It imports the data through files like .csv for data of any object which is having data records of more than 2000, but if you less number of records one should prefer other ways.

I think it's extremely useful any time you have to change records with the same data. Very useful when you also need to upload data into Salesforce. Also, very useful when you need to do the combination. The only issue that you can run into, and it's no fault of Dataloader.io's, is when you have to manipulate a bunch of records, sometimes the record id's can get a little mixed up and you can accidentally update the wrong records. You have to be careful not to do that and identify the duplicates before hand. I think it's always appropriate and will use it for records of more than 20 honestly.

[Dataloader.io is] best for easy load drop. Anything unique or outside the normal is harder or more work to capture