What the experts say
Engadget declared that Bose is no longer the king of noise cancellation, commenting that Sony’s WH-1000XM3 are better at blocking out noise and have a better sound. However, the 700s were still rated highly in both departments (though the treble can be on the harsh side). The comfy design was also praised. as was voice clarity.
What-HiFi agreed that for this price you would expect better sound. Battery life could be better too. However, the noise cancellation and comfort are first class.
Tom's Guide liked the audio, design and the ease of use. The only downside? That price.