I would rate this phone As a 5. As I have had so much trouble with it, for example : facebook freezing up as while as messenger also stops working. I also get messaging has stopped working, telephone has stopped wprking so I had to install a different phone app & a different message app, which thankfully they both work.
It's an entry level phone with very basic specs, so it's never going to be a great performer. Apps are designed for much more powerful phones these days, so things like Facebook will become more and more buggy as they struggle with the limited hardware.
Never be afraid to back yourself when trying new things, just always make sure you have 3 escape routes if things go wrong.