Echo JS 0.11.0

I would avoid bootstrap if you can.

Flexbox gives you the ability to do what one previously used boostrap's grid system for, and there are independently-built, react-friendly widgets that cover most of what bootstrap does.

If you must use a framework, I'd suggest using Semantic UI instead.  It's more "react-friendly" out of the box.

I like react-bootstrap since it already solved the rough edges of integrating bootstrap into react. So I definitely would go for react-bootstrap.

The only downside is that react-bootstrap is based on bootstrap v3 and not the upcoming v4, so you're surely looking for a migration in the future.

react-bootstrap has some limitations, but it's great if you want to do a very fast and good looking prototype without creating your own components, copy/pasting bootstrap code, converting "class" in "classname", etc...

I've used both, doesn't really matter. If you already have a mockup in plain bootstrap, it might be quicker to stick with that.