Anybody familiar with Bindweeds?

I had this vine appear in my garden midsummer and thought it was a beanplant I planted and a few weeks back started blooming very pretty flowers. Not know what this was, I did some research and think I found it is a Bindweed

For me “weed” anything is not good in a garden but these flowers are really pretty. The vine is pretty prolific and I am concerned that this may not be a good thing. I can’t find much useful information as to the pros and cons of such a plant and my first reaction is to keep it. I do know though from my own experience at growing hop vines in that they can quickly take over a very large area and concerned about what this plant may do. Any advice would be greatly appreciated.