Smartwriter.ai excels well in writing cold emails which is the primary reason I bought it. I find the copy output to be of high quality. But here's the thing, for Smartwriter to output good results you must supply it with good inputs. In other words garbage in garbage out. After that you still have to edit but Smartwriter already have done the heavy lifting for you. So Yes I highly recommend this product.

Here are some room for improvements.

1) More integrations (only has Shopify at the moment)
2) Multilingual capabilities (only English now)
3) More credits (Nichesss gives us unlimited)

In any case it's a great product!