$400 for a refurbished phone is too much. Unless it's the iPhone because Apple fans love to flaunt the Apple logo never mind if some refurbished components become defective again. The Google logo doesn't command as much prestige and flaunting value as the iPhone so it's the worst investment in a refurbished phone I can imagine.
still overpriced as what other comments mentioned. By now, it is better for you to wait for Google Pixel 2, which expected to be released in few months from now, or buy other latest android devices with SD835.